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(parent: 8b53ef3) | patch
serial: fixup /proc/tty/driver/serial after proc_fops conversion
authorAlexey Dobriyan <adobriyan@gmail.com>
Wed, 1 Apr 2009 21:30:04 +0000 (01:30 +0400)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 1 Apr 2009 21:50:48 +0000 (14:50 -0700)
commit833bb3046b6cb320e775ea2160ddca87d53260d5
treede206436200246909246f9e0df27e4cced13e364tree | snapshot
parent8b53ef33d9d8fa5f771ae11cc6a6e7bc0182beeccommit | diff
serial: fixup /proc/tty/driver/serial after proc_fops conversion

"struct tty_driver *" lies in m->private not in v which is
SEQ_TOKEN_START which is 1 which is enough to trigger NULL dereference
next line:

BUG: unable to handle kernel NULL pointer dereference at 000000ad
IP: [<c040d689>] uart_proc_show+0xe/0x2b0

Noticed by Linus.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
drivers/serial/serial_core.c diff | blob | history
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