This is a note to let you know that I've just added the patch titled
USB: ene_usb6250: fix SCSI residue overwriting
to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: usb-ene_usb6250-fix-scsi-residue-overwriting.patch and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.
From foo@baz Tue Apr 10 10:31:53 CEST 2018
From: Alan Stern stern@rowland.harvard.edu Date: Tue, 16 May 2017 11:47:52 -0400 Subject: USB: ene_usb6250: fix SCSI residue overwriting
From: Alan Stern stern@rowland.harvard.edu
[ Upstream commit aa18c4b6e0e39bfb00af48734ec24bc189ac9909 ]
In the ene_usb6250 sub-driver for usb-storage, the SCSI residue is not reported correctly. The residue is initialized to 0, but this value is overwritten whenever the driver sends firmware to the card reader before performing the current command. As a result, a valid READ or WRITE operation appears to have failed, causing the SCSI core to retry the command multiple times and eventually fail.
This patch fixes the problem by resetting the SCSI residue to 0 after sending firmware to the device.
Signed-off-by: Alan Stern stern@rowland.harvard.edu Reported-and-tested-by: Andreas Hartmann andihartmann@01019freenet.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/usb/storage/ene_ub6250.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/drivers/usb/storage/ene_ub6250.c +++ b/drivers/usb/storage/ene_ub6250.c @@ -1953,6 +1953,8 @@ static int ene_load_bincode(struct us_da bcb->CDB[0] = 0xEF;
result = ene_send_scsi_cmd(us, FDIR_WRITE, buf, 0); + if (us->srb != NULL) + scsi_set_resid(us->srb, 0); info->BIN_FLAG = flag; kfree(buf);
Patches currently in stable-queue which might be from stern@rowland.harvard.edu are
queue-4.4/usb-ene_usb6250-fix-first-command-execution.patch queue-4.4/usb-ene_usb6250-fix-scsi-residue-overwriting.patch