tree 4c5680f084b62afd5d0f2e6247fd500277610c65
parent 42dd2aa6496a2e87e496aac5494d2e1d6096c85b
author Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com> 1245937290 +0100
committer Linus Torvalds <torvalds@linux-foundation.org> 1245954266 -0700

acm: Fix oops when closing ACM tty device right after open has failed.

This commit 10077d4a6674f535abdbe25cdecb1202af7948f1 has stopped
checking if there was a valid acm device associated to the tty, which is
not true right after open fails and tty subsystem tries to close the
device.

As an example, open fails with a non-existing device, when probe has
never been called, because the device has never been plugged. This is
common in systems with static modules and no udev.

Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>