From: Oliver Neukum oneukum@suse.com
commit 9a5729f68d3a82786aea110b1bfe610be318f80a upstream.
The pointer used to log a failure of usb_register_dev() must be set before the error is logged.
v2: fix that minor is not available before registration
Signed-off-by: oliver Neukum oneukum@suse.com Reported-by: syzbot+a0cbdbd6d169020c8959@syzkaller.appspotmail.com Fixes: 7b5cd5fefbe02 ("USB: SisUSB2VGA: Convert printk to dev_* macros") Cc: stable stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/usb/misc/sisusbvga/sisusb.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-)
--- a/drivers/usb/misc/sisusbvga/sisusb.c +++ b/drivers/usb/misc/sisusbvga/sisusb.c @@ -3103,6 +3103,13 @@ static int sisusb_probe(struct usb_inter
mutex_init(&(sisusb->lock));
+ sisusb->sisusb_dev = dev; + sisusb->vrambase = SISUSB_PCI_MEMBASE; + sisusb->mmiobase = SISUSB_PCI_MMIOBASE; + sisusb->mmiosize = SISUSB_PCI_MMIOSIZE; + sisusb->ioportbase = SISUSB_PCI_IOPORTBASE; + /* Everything else is zero */ + /* Register device */ retval = usb_register_dev(intf, &usb_sisusb_class); if (retval) { @@ -3112,13 +3119,7 @@ static int sisusb_probe(struct usb_inter goto error_1; }
- sisusb->sisusb_dev = dev; - sisusb->minor = intf->minor; - sisusb->vrambase = SISUSB_PCI_MEMBASE; - sisusb->mmiobase = SISUSB_PCI_MMIOBASE; - sisusb->mmiosize = SISUSB_PCI_MMIOSIZE; - sisusb->ioportbase = SISUSB_PCI_IOPORTBASE; - /* Everything else is zero */ + sisusb->minor = intf->minor;
/* Allocate buffers */ sisusb->ibufsize = SISUSB_IBUF_SIZE;