A recent commit added an endpoint sanity check to address a NULL-pointer
dereference on probe. Unfortunately the check was done on the current
altsetting which was later changed.
Fix this by moving the sanity check to after the altsetting is changed.
Fixes: 1b976fc6d684 ("media: b2c2-flexcop-usb: add sanity checking")
Cc: Oliver Neukum <oneukum(a)suse.com>
Cc: stable <stable(a)vger.kernel.org>
Signed-off-by: Johan Hovold <johan(a)kernel.org>
---
drivers/media/usb/b2c2/flexcop-usb.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/media/usb/b2c2/flexcop-usb.c b/drivers/media/usb/b2c2/flexcop-usb.c
index 039963a7765b..198ddfb8d2b1 100644
--- a/drivers/media/usb/b2c2/flexcop-usb.c
+++ b/drivers/media/usb/b2c2/flexcop-usb.c
@@ -511,6 +511,9 @@ static int flexcop_usb_init(struct flexcop_usb *fc_usb)
return ret;
}
+ if (fc_usb->uintf->cur_altsetting->desc.bNumEndpoints < 1)
+ return -ENODEV;
+
switch (fc_usb->udev->speed) {
case USB_SPEED_LOW:
err("cannot handle USB speed because it is too slow.");
@@ -544,9 +547,6 @@ static int flexcop_usb_probe(struct usb_interface *intf,
struct flexcop_device *fc = NULL;
int ret;
- if (intf->cur_altsetting->desc.bNumEndpoints < 1)
- return -ENODEV;
-
if ((fc = flexcop_device_kmalloc(sizeof(struct flexcop_usb))) == NULL) {
err("out of memory\n");
return -ENOMEM;
--
2.24.1
This is an automatic generated email to let you know that the following patch were queued:
Subject: media: v4l2-core: compat: ignore native command codes
Author: Arnd Bergmann <arnd(a)arndb.de>
Date: Mon Dec 16 15:15:01 2019 +0100
The do_video_ioctl() compat handler converts the compat command
codes into the native ones before processing further, but this
causes problems for 32-bit user applications that pass a command
code that matches a 64-bit native number, which will then be
handled the same way.
Specifically, this breaks VIDIOC_DQEVENT_TIME from user space
applications with 64-bit time_t, as the structure layout is
the same as the native 64-bit layout on many architectures
(x86 being the notable exception).
Change the handler to use the converted command code only for
passing into the native ioctl handler, not for deciding on the
conversion, in order to make the compat behavior match the
native behavior.
Actual support for the 64-bit time_t version of VIDIOC_DQEVENT_TIME
and other commands still needs to be added in a separate patch.
Cc: stable(a)vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd(a)arndb.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco(a)xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei(a)kernel.org>
drivers/media/v4l2-core/v4l2-compat-ioctl32.c | 148 +++++++++++++-------------
1 file changed, 75 insertions(+), 73 deletions(-)
---
diff --git a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
index e1eaf1135c7f..7ad6db8dd9f6 100644
--- a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
+++ b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
@@ -1183,36 +1183,38 @@ static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long ar
u32 aux_space;
int compatible_arg = 1;
long err = 0;
+ unsigned int ncmd;
/*
* 1. When struct size is different, converts the command.
*/
switch (cmd) {
- case VIDIOC_G_FMT32: cmd = VIDIOC_G_FMT; break;
- case VIDIOC_S_FMT32: cmd = VIDIOC_S_FMT; break;
- case VIDIOC_QUERYBUF32: cmd = VIDIOC_QUERYBUF; break;
- case VIDIOC_G_FBUF32: cmd = VIDIOC_G_FBUF; break;
- case VIDIOC_S_FBUF32: cmd = VIDIOC_S_FBUF; break;
- case VIDIOC_QBUF32: cmd = VIDIOC_QBUF; break;
- case VIDIOC_DQBUF32: cmd = VIDIOC_DQBUF; break;
- case VIDIOC_ENUMSTD32: cmd = VIDIOC_ENUMSTD; break;
- case VIDIOC_ENUMINPUT32: cmd = VIDIOC_ENUMINPUT; break;
- case VIDIOC_TRY_FMT32: cmd = VIDIOC_TRY_FMT; break;
- case VIDIOC_G_EXT_CTRLS32: cmd = VIDIOC_G_EXT_CTRLS; break;
- case VIDIOC_S_EXT_CTRLS32: cmd = VIDIOC_S_EXT_CTRLS; break;
- case VIDIOC_TRY_EXT_CTRLS32: cmd = VIDIOC_TRY_EXT_CTRLS; break;
- case VIDIOC_DQEVENT32: cmd = VIDIOC_DQEVENT; break;
- case VIDIOC_OVERLAY32: cmd = VIDIOC_OVERLAY; break;
- case VIDIOC_STREAMON32: cmd = VIDIOC_STREAMON; break;
- case VIDIOC_STREAMOFF32: cmd = VIDIOC_STREAMOFF; break;
- case VIDIOC_G_INPUT32: cmd = VIDIOC_G_INPUT; break;
- case VIDIOC_S_INPUT32: cmd = VIDIOC_S_INPUT; break;
- case VIDIOC_G_OUTPUT32: cmd = VIDIOC_G_OUTPUT; break;
- case VIDIOC_S_OUTPUT32: cmd = VIDIOC_S_OUTPUT; break;
- case VIDIOC_CREATE_BUFS32: cmd = VIDIOC_CREATE_BUFS; break;
- case VIDIOC_PREPARE_BUF32: cmd = VIDIOC_PREPARE_BUF; break;
- case VIDIOC_G_EDID32: cmd = VIDIOC_G_EDID; break;
- case VIDIOC_S_EDID32: cmd = VIDIOC_S_EDID; break;
+ case VIDIOC_G_FMT32: ncmd = VIDIOC_G_FMT; break;
+ case VIDIOC_S_FMT32: ncmd = VIDIOC_S_FMT; break;
+ case VIDIOC_QUERYBUF32: ncmd = VIDIOC_QUERYBUF; break;
+ case VIDIOC_G_FBUF32: ncmd = VIDIOC_G_FBUF; break;
+ case VIDIOC_S_FBUF32: ncmd = VIDIOC_S_FBUF; break;
+ case VIDIOC_QBUF32: ncmd = VIDIOC_QBUF; break;
+ case VIDIOC_DQBUF32: ncmd = VIDIOC_DQBUF; break;
+ case VIDIOC_ENUMSTD32: ncmd = VIDIOC_ENUMSTD; break;
+ case VIDIOC_ENUMINPUT32: ncmd = VIDIOC_ENUMINPUT; break;
+ case VIDIOC_TRY_FMT32: ncmd = VIDIOC_TRY_FMT; break;
+ case VIDIOC_G_EXT_CTRLS32: ncmd = VIDIOC_G_EXT_CTRLS; break;
+ case VIDIOC_S_EXT_CTRLS32: ncmd = VIDIOC_S_EXT_CTRLS; break;
+ case VIDIOC_TRY_EXT_CTRLS32: ncmd = VIDIOC_TRY_EXT_CTRLS; break;
+ case VIDIOC_DQEVENT32: ncmd = VIDIOC_DQEVENT; break;
+ case VIDIOC_OVERLAY32: ncmd = VIDIOC_OVERLAY; break;
+ case VIDIOC_STREAMON32: ncmd = VIDIOC_STREAMON; break;
+ case VIDIOC_STREAMOFF32: ncmd = VIDIOC_STREAMOFF; break;
+ case VIDIOC_G_INPUT32: ncmd = VIDIOC_G_INPUT; break;
+ case VIDIOC_S_INPUT32: ncmd = VIDIOC_S_INPUT; break;
+ case VIDIOC_G_OUTPUT32: ncmd = VIDIOC_G_OUTPUT; break;
+ case VIDIOC_S_OUTPUT32: ncmd = VIDIOC_S_OUTPUT; break;
+ case VIDIOC_CREATE_BUFS32: ncmd = VIDIOC_CREATE_BUFS; break;
+ case VIDIOC_PREPARE_BUF32: ncmd = VIDIOC_PREPARE_BUF; break;
+ case VIDIOC_G_EDID32: ncmd = VIDIOC_G_EDID; break;
+ case VIDIOC_S_EDID32: ncmd = VIDIOC_S_EDID; break;
+ default: ncmd = cmd; break;
}
/*
@@ -1221,11 +1223,11 @@ static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long ar
* argument into it.
*/
switch (cmd) {
- case VIDIOC_OVERLAY:
- case VIDIOC_STREAMON:
- case VIDIOC_STREAMOFF:
- case VIDIOC_S_INPUT:
- case VIDIOC_S_OUTPUT:
+ case VIDIOC_OVERLAY32:
+ case VIDIOC_STREAMON32:
+ case VIDIOC_STREAMOFF32:
+ case VIDIOC_S_INPUT32:
+ case VIDIOC_S_OUTPUT32:
err = alloc_userspace(sizeof(unsigned int), 0, &new_p64);
if (!err && assign_in_user((unsigned int __user *)new_p64,
(compat_uint_t __user *)p32))
@@ -1233,23 +1235,23 @@ static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long ar
compatible_arg = 0;
break;
- case VIDIOC_G_INPUT:
- case VIDIOC_G_OUTPUT:
+ case VIDIOC_G_INPUT32:
+ case VIDIOC_G_OUTPUT32:
err = alloc_userspace(sizeof(unsigned int), 0, &new_p64);
compatible_arg = 0;
break;
- case VIDIOC_G_EDID:
- case VIDIOC_S_EDID:
+ case VIDIOC_G_EDID32:
+ case VIDIOC_S_EDID32:
err = alloc_userspace(sizeof(struct v4l2_edid), 0, &new_p64);
if (!err)
err = get_v4l2_edid32(new_p64, p32);
compatible_arg = 0;
break;
- case VIDIOC_G_FMT:
- case VIDIOC_S_FMT:
- case VIDIOC_TRY_FMT:
+ case VIDIOC_G_FMT32:
+ case VIDIOC_S_FMT32:
+ case VIDIOC_TRY_FMT32:
err = bufsize_v4l2_format(p32, &aux_space);
if (!err)
err = alloc_userspace(sizeof(struct v4l2_format),
@@ -1262,7 +1264,7 @@ static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long ar
compatible_arg = 0;
break;
- case VIDIOC_CREATE_BUFS:
+ case VIDIOC_CREATE_BUFS32:
err = bufsize_v4l2_create(p32, &aux_space);
if (!err)
err = alloc_userspace(sizeof(struct v4l2_create_buffers),
@@ -1275,10 +1277,10 @@ static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long ar
compatible_arg = 0;
break;
- case VIDIOC_PREPARE_BUF:
- case VIDIOC_QUERYBUF:
- case VIDIOC_QBUF:
- case VIDIOC_DQBUF:
+ case VIDIOC_PREPARE_BUF32:
+ case VIDIOC_QUERYBUF32:
+ case VIDIOC_QBUF32:
+ case VIDIOC_DQBUF32:
err = bufsize_v4l2_buffer(p32, &aux_space);
if (!err)
err = alloc_userspace(sizeof(struct v4l2_buffer),
@@ -1291,7 +1293,7 @@ static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long ar
compatible_arg = 0;
break;
- case VIDIOC_S_FBUF:
+ case VIDIOC_S_FBUF32:
err = alloc_userspace(sizeof(struct v4l2_framebuffer), 0,
&new_p64);
if (!err)
@@ -1299,13 +1301,13 @@ static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long ar
compatible_arg = 0;
break;
- case VIDIOC_G_FBUF:
+ case VIDIOC_G_FBUF32:
err = alloc_userspace(sizeof(struct v4l2_framebuffer), 0,
&new_p64);
compatible_arg = 0;
break;
- case VIDIOC_ENUMSTD:
+ case VIDIOC_ENUMSTD32:
err = alloc_userspace(sizeof(struct v4l2_standard), 0,
&new_p64);
if (!err)
@@ -1313,16 +1315,16 @@ static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long ar
compatible_arg = 0;
break;
- case VIDIOC_ENUMINPUT:
+ case VIDIOC_ENUMINPUT32:
err = alloc_userspace(sizeof(struct v4l2_input), 0, &new_p64);
if (!err)
err = get_v4l2_input32(new_p64, p32);
compatible_arg = 0;
break;
- case VIDIOC_G_EXT_CTRLS:
- case VIDIOC_S_EXT_CTRLS:
- case VIDIOC_TRY_EXT_CTRLS:
+ case VIDIOC_G_EXT_CTRLS32:
+ case VIDIOC_S_EXT_CTRLS32:
+ case VIDIOC_TRY_EXT_CTRLS32:
err = bufsize_v4l2_ext_controls(p32, &aux_space);
if (!err)
err = alloc_userspace(sizeof(struct v4l2_ext_controls),
@@ -1334,7 +1336,7 @@ static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long ar
}
compatible_arg = 0;
break;
- case VIDIOC_DQEVENT:
+ case VIDIOC_DQEVENT32:
err = alloc_userspace(sizeof(struct v4l2_event), 0, &new_p64);
compatible_arg = 0;
break;
@@ -1352,9 +1354,9 @@ static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long ar
* Otherwise, it will pass the newly allocated @new_p64 argument.
*/
if (compatible_arg)
- err = native_ioctl(file, cmd, (unsigned long)p32);
+ err = native_ioctl(file, ncmd, (unsigned long)p32);
else
- err = native_ioctl(file, cmd, (unsigned long)new_p64);
+ err = native_ioctl(file, ncmd, (unsigned long)new_p64);
if (err == -ENOTTY)
return err;
@@ -1370,13 +1372,13 @@ static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long ar
* the blocks to maximum allowed value.
*/
switch (cmd) {
- case VIDIOC_G_EXT_CTRLS:
- case VIDIOC_S_EXT_CTRLS:
- case VIDIOC_TRY_EXT_CTRLS:
+ case VIDIOC_G_EXT_CTRLS32:
+ case VIDIOC_S_EXT_CTRLS32:
+ case VIDIOC_TRY_EXT_CTRLS32:
if (put_v4l2_ext_controls32(file, new_p64, p32))
err = -EFAULT;
break;
- case VIDIOC_S_EDID:
+ case VIDIOC_S_EDID32:
if (put_v4l2_edid32(new_p64, p32))
err = -EFAULT;
break;
@@ -1389,49 +1391,49 @@ static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long ar
* the original 32 bits structure.
*/
switch (cmd) {
- case VIDIOC_S_INPUT:
- case VIDIOC_S_OUTPUT:
- case VIDIOC_G_INPUT:
- case VIDIOC_G_OUTPUT:
+ case VIDIOC_S_INPUT32:
+ case VIDIOC_S_OUTPUT32:
+ case VIDIOC_G_INPUT32:
+ case VIDIOC_G_OUTPUT32:
if (assign_in_user((compat_uint_t __user *)p32,
((unsigned int __user *)new_p64)))
err = -EFAULT;
break;
- case VIDIOC_G_FBUF:
+ case VIDIOC_G_FBUF32:
err = put_v4l2_framebuffer32(new_p64, p32);
break;
- case VIDIOC_DQEVENT:
+ case VIDIOC_DQEVENT32:
err = put_v4l2_event32(new_p64, p32);
break;
- case VIDIOC_G_EDID:
+ case VIDIOC_G_EDID32:
err = put_v4l2_edid32(new_p64, p32);
break;
- case VIDIOC_G_FMT:
- case VIDIOC_S_FMT:
- case VIDIOC_TRY_FMT:
+ case VIDIOC_G_FMT32:
+ case VIDIOC_S_FMT32:
+ case VIDIOC_TRY_FMT32:
err = put_v4l2_format32(new_p64, p32);
break;
- case VIDIOC_CREATE_BUFS:
+ case VIDIOC_CREATE_BUFS32:
err = put_v4l2_create32(new_p64, p32);
break;
- case VIDIOC_PREPARE_BUF:
- case VIDIOC_QUERYBUF:
- case VIDIOC_QBUF:
- case VIDIOC_DQBUF:
+ case VIDIOC_PREPARE_BUF32:
+ case VIDIOC_QUERYBUF32:
+ case VIDIOC_QBUF32:
+ case VIDIOC_DQBUF32:
err = put_v4l2_buffer32(new_p64, p32);
break;
- case VIDIOC_ENUMSTD:
+ case VIDIOC_ENUMSTD32:
err = put_v4l2_standard32(new_p64, p32);
break;
- case VIDIOC_ENUMINPUT:
+ case VIDIOC_ENUMINPUT32:
err = put_v4l2_input32(new_p64, p32);
break;
}
This is a note to let you know that I've just added the patch titled
staging: rtl8188eu: Add device code for TP-Link TL-WN727N v5.21
to my staging git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git
in the staging-linus branch.
The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)
The patch will hopefully also be merged in Linus's tree for the
next -rc kernel release.
If you have any questions about this process, please let me know.
>From 58dcc5bf4030cab548d5c98cd4cd3632a5444d5a Mon Sep 17 00:00:00 2001
From: Michael Straube <straube.linux(a)gmail.com>
Date: Sat, 28 Dec 2019 15:37:25 +0100
Subject: staging: rtl8188eu: Add device code for TP-Link TL-WN727N v5.21
This device was added to the stand-alone driver on github.
Add it to the staging driver as well.
Link: https://github.com/lwfinger/rtl8188eu/commit/b9b537aa25a8
Signed-off-by: Michael Straube <straube.linux(a)gmail.com>
Cc: stable <stable(a)vger.kernel.org>
Link: https://lore.kernel.org/r/20191228143725.24455-1-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org>
---
drivers/staging/rtl8188eu/os_dep/usb_intf.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/staging/rtl8188eu/os_dep/usb_intf.c b/drivers/staging/rtl8188eu/os_dep/usb_intf.c
index a7cac0719b8b..b5d42f411dd8 100644
--- a/drivers/staging/rtl8188eu/os_dep/usb_intf.c
+++ b/drivers/staging/rtl8188eu/os_dep/usb_intf.c
@@ -37,6 +37,7 @@ static const struct usb_device_id rtw_usb_id_tbl[] = {
{USB_DEVICE(0x2001, 0x3311)}, /* DLink GO-USB-N150 REV B1 */
{USB_DEVICE(0x2001, 0x331B)}, /* D-Link DWA-121 rev B1 */
{USB_DEVICE(0x2357, 0x010c)}, /* TP-Link TL-WN722N v2 */
+ {USB_DEVICE(0x2357, 0x0111)}, /* TP-Link TL-WN727N v5.21 */
{USB_DEVICE(0x0df6, 0x0076)}, /* Sitecom N150 v2 */
{USB_DEVICE(USB_VENDER_ID_REALTEK, 0xffef)}, /* Rosewill RNX-N150NUB */
{} /* Terminating entry */
--
2.24.1
This is a note to let you know that I've just added the patch titled
staging: comedi: adv_pci1710: fix AI channels 16-31 for PCI-1713
to my staging git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git
in the staging-linus branch.
The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)
The patch will hopefully also be merged in Linus's tree for the
next -rc kernel release.
If you have any questions about this process, please let me know.
>From a9d3a9cedc1330c720e0ddde1978a8e7771da5ab Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti(a)mev.co.uk>
Date: Fri, 27 Dec 2019 17:00:54 +0000
Subject: staging: comedi: adv_pci1710: fix AI channels 16-31 for PCI-1713
The Advantech PCI-1713 has 32 analog input channels, but an incorrect
bit-mask in the definition of the `PCI171X_MUX_CHANH(x)` and
PCI171X_MUX_CHANL(x)` macros is causing channels 16 to 31 to be aliases
of channels 0 to 15. Change the bit-mask value from 0xf to 0xff to fix
it. Note that the channel numbers will have been range checked already,
so the bit-mask isn't really needed.
Fixes: 92c65e5553ed ("staging: comedi: adv_pci1710: define the mux control register bits")
Reported-by: Dmytro Fil <monkdaf(a)gmail.com>
Cc: <stable(a)vger.kernel.org> # v4.5+
Signed-off-by: Ian Abbott <abbotti(a)mev.co.uk>
Link: https://lore.kernel.org/r/20191227170054.32051-1-abbotti@mev.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org>
---
drivers/staging/comedi/drivers/adv_pci1710.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/staging/comedi/drivers/adv_pci1710.c b/drivers/staging/comedi/drivers/adv_pci1710.c
index dbff0f7e7cf5..ddc0dc93d08b 100644
--- a/drivers/staging/comedi/drivers/adv_pci1710.c
+++ b/drivers/staging/comedi/drivers/adv_pci1710.c
@@ -46,8 +46,8 @@
#define PCI171X_RANGE_UNI BIT(4)
#define PCI171X_RANGE_GAIN(x) (((x) & 0x7) << 0)
#define PCI171X_MUX_REG 0x04 /* W: A/D multiplexor control */
-#define PCI171X_MUX_CHANH(x) (((x) & 0xf) << 8)
-#define PCI171X_MUX_CHANL(x) (((x) & 0xf) << 0)
+#define PCI171X_MUX_CHANH(x) (((x) & 0xff) << 8)
+#define PCI171X_MUX_CHANL(x) (((x) & 0xff) << 0)
#define PCI171X_MUX_CHAN(x) (PCI171X_MUX_CHANH(x) | PCI171X_MUX_CHANL(x))
#define PCI171X_STATUS_REG 0x06 /* R: status register */
#define PCI171X_STATUS_IRQ BIT(11) /* 1=IRQ occurred */
--
2.24.1
This is a note to let you know that I've just added the patch titled
staging: vt6656: set usb_set_intfdata on driver fail.
to my staging git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git
in the staging-linus branch.
The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)
The patch will hopefully also be merged in Linus's tree for the
next -rc kernel release.
If you have any questions about this process, please let me know.
>From c0bcf9f3f5b661d4ace2a64a79ef661edd2a4dc8 Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy(a)gmail.com>
Date: Fri, 20 Dec 2019 21:15:59 +0000
Subject: staging: vt6656: set usb_set_intfdata on driver fail.
intfdata will contain stale pointer when the device is detached after
failed initialization when referenced in vt6656_disconnect
Provide driver access to it here and NULL it.
Cc: stable <stable(a)vger.kernel.org>
Signed-off-by: Malcolm Priestley <tvboxspy(a)gmail.com>
Link: https://lore.kernel.org/r/6de448d7-d833-ef2e-dd7b-3ef9992fee0e@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org>
---
drivers/staging/vt6656/device.h | 1 +
drivers/staging/vt6656/main_usb.c | 1 +
drivers/staging/vt6656/wcmd.c | 1 +
3 files changed, 3 insertions(+)
diff --git a/drivers/staging/vt6656/device.h b/drivers/staging/vt6656/device.h
index 6074ceda78bf..50e1c8918040 100644
--- a/drivers/staging/vt6656/device.h
+++ b/drivers/staging/vt6656/device.h
@@ -259,6 +259,7 @@ struct vnt_private {
u8 mac_hw;
/* netdev */
struct usb_device *usb;
+ struct usb_interface *intf;
u64 tsf_time;
u8 rx_rate;
diff --git a/drivers/staging/vt6656/main_usb.c b/drivers/staging/vt6656/main_usb.c
index 4a5d741f94f5..9cb924c54571 100644
--- a/drivers/staging/vt6656/main_usb.c
+++ b/drivers/staging/vt6656/main_usb.c
@@ -992,6 +992,7 @@ vt6656_probe(struct usb_interface *intf, const struct usb_device_id *id)
priv = hw->priv;
priv->hw = hw;
priv->usb = udev;
+ priv->intf = intf;
vnt_set_options(priv);
diff --git a/drivers/staging/vt6656/wcmd.c b/drivers/staging/vt6656/wcmd.c
index 3eb2f11a5de1..2c5250ca2801 100644
--- a/drivers/staging/vt6656/wcmd.c
+++ b/drivers/staging/vt6656/wcmd.c
@@ -99,6 +99,7 @@ void vnt_run_command(struct work_struct *work)
if (vnt_init(priv)) {
/* If fail all ends TODO retry */
dev_err(&priv->usb->dev, "failed to start\n");
+ usb_set_intfdata(priv->intf, NULL);
ieee80211_free_hw(priv->hw);
return;
}
--
2.24.1
This is a note to let you know that I've just added the patch titled
staging: vt6656: limit reg output to block size
to my staging git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git
in the staging-linus branch.
The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)
The patch will hopefully also be merged in Linus's tree for the
next -rc kernel release.
If you have any questions about this process, please let me know.
>From 69cc1f925e1aa74b96e2ace67e3453a50d091d2f Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy(a)gmail.com>
Date: Fri, 20 Dec 2019 21:15:24 +0000
Subject: staging: vt6656: limit reg output to block size
vnt_control_out appears to fail when BBREG is greater than 64 writes.
Create new function that will relay an array in no larger than
the indicated block size.
It appears that this command has always failed but was ignored by
driver until the introduction of error checking.
Cc: stable <stable(a)vger.kernel.org> # v5.3+
Signed-off-by: Malcolm Priestley <tvboxspy(a)gmail.com>
Link: https://lore.kernel.org/r/a41f0601-df46-ce6e-ab7c-35e697946e2a@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org>
---
drivers/staging/vt6656/baseband.c | 4 ++--
drivers/staging/vt6656/usbpipe.c | 17 +++++++++++++++++
drivers/staging/vt6656/usbpipe.h | 5 +++++
3 files changed, 24 insertions(+), 2 deletions(-)
diff --git a/drivers/staging/vt6656/baseband.c b/drivers/staging/vt6656/baseband.c
index 8d19ae71e7cc..4e651b698617 100644
--- a/drivers/staging/vt6656/baseband.c
+++ b/drivers/staging/vt6656/baseband.c
@@ -449,8 +449,8 @@ int vnt_vt3184_init(struct vnt_private *priv)
memcpy(array, addr, length);
- ret = vnt_control_out(priv, MESSAGE_TYPE_WRITE, 0,
- MESSAGE_REQUEST_BBREG, length, array);
+ ret = vnt_control_out_blocks(priv, VNT_REG_BLOCK_SIZE,
+ MESSAGE_REQUEST_BBREG, length, array);
if (ret)
goto end;
diff --git a/drivers/staging/vt6656/usbpipe.c b/drivers/staging/vt6656/usbpipe.c
index 488ebd98773d..d977d4777e4f 100644
--- a/drivers/staging/vt6656/usbpipe.c
+++ b/drivers/staging/vt6656/usbpipe.c
@@ -76,6 +76,23 @@ int vnt_control_out_u8(struct vnt_private *priv, u8 reg, u8 reg_off, u8 data)
reg_off, reg, sizeof(u8), &data);
}
+int vnt_control_out_blocks(struct vnt_private *priv,
+ u16 block, u8 reg, u16 length, u8 *data)
+{
+ int ret = 0, i;
+
+ for (i = 0; i < length; i += block) {
+ u16 len = min_t(int, length - i, block);
+
+ ret = vnt_control_out(priv, MESSAGE_TYPE_WRITE,
+ i, reg, len, data + i);
+ if (ret)
+ goto end;
+ }
+end:
+ return ret;
+}
+
int vnt_control_in(struct vnt_private *priv, u8 request, u16 value,
u16 index, u16 length, u8 *buffer)
{
diff --git a/drivers/staging/vt6656/usbpipe.h b/drivers/staging/vt6656/usbpipe.h
index 95147ec7b96a..b65d9c01a211 100644
--- a/drivers/staging/vt6656/usbpipe.h
+++ b/drivers/staging/vt6656/usbpipe.h
@@ -18,6 +18,8 @@
#include "device.h"
+#define VNT_REG_BLOCK_SIZE 64
+
int vnt_control_out(struct vnt_private *priv, u8 request, u16 value,
u16 index, u16 length, u8 *buffer);
int vnt_control_in(struct vnt_private *priv, u8 request, u16 value,
@@ -26,6 +28,9 @@ int vnt_control_in(struct vnt_private *priv, u8 request, u16 value,
int vnt_control_out_u8(struct vnt_private *priv, u8 reg, u8 ref_off, u8 data);
int vnt_control_in_u8(struct vnt_private *priv, u8 reg, u8 reg_off, u8 *data);
+int vnt_control_out_blocks(struct vnt_private *priv,
+ u16 block, u8 reg, u16 len, u8 *data);
+
int vnt_start_interrupt_urb(struct vnt_private *priv);
int vnt_submit_rx_urb(struct vnt_private *priv, struct vnt_rcb *rcb);
int vnt_tx_context(struct vnt_private *priv,
--
2.24.1