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misc: rtsx_usb: use separate command and response buffers

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rtsx_usb uses same buffer for command and response. There could
be a potential conflict using the same buffer for both especially
if retries and timeouts are involved.

Use separate command and response buffers to avoid conflicts.

Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Cc: stable <stable@kernel.org>
Link: https://lore.kernel.org/r/07e3721804ff07aaab9ef5b39a5691d0718b9ade.1656642167.git.skhan@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Shuah Khan 2022-06-30 20:32:56 -06:00 • committed by Greg Kroah-Hartman
parent eb7f8e2842
commit 3776c78559
2 changed files with 17 additions and 10 deletions
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1
include/linux/rtsx_usb.h
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@ -54,7 +54,6 @@ struct rtsx_ucr {
struct usb_device *pusb_dev;
struct usb_interface *pusb_intf;
struct usb_sg_request current_sg;
unsigned char *iobuf;
struct timer_list sg_timer;
struct mutex dev_mutex;