staging: most: usb: fix usb_disconnect race condition

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The functions usb_disconnect and usb_sndbulkpipe are racing for the struct
usb_device, which might cause a null pointer dereference exception. This
patch fixes this race condition by protecting the critical section inside
the function hdm_enque with the io_mutex.

Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Christian Gromm 2018-05-08 11:45:15 +02:00 • committed by Greg Kroah-Hartman

parent 9a32315b0b

commit c06b99e002

1 changed files with 13 additions and 6 deletions

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drivers/staging/most/usb/usb.c

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