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(parent: 6f56d0f) | patch
sysrq: Fix possible race with exiting task
authorAnton Vorontsov <anton.vorontsov@linaro.org>
Tue, 7 Feb 2012 06:49:39 +0000 (10:49 +0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 9 Feb 2012 17:03:29 +0000 (09:03 -0800)
commite502babe0a85226f2417b60a8710cf8192879180
tree6964ef225b6eded57757425c6faf3c59d1d0c21etree | snapshot
parent6f56d0f43656deb98c6366a133a75b5a7cf73a26commit | diff
sysrq: Fix possible race with exiting task

sysrq should grab the tasklist lock, otherwise calling force_sig() is
not safe, as it might race with exiting task, which ->sighand might be
set to NULL already.

Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/sysrq.c diff | blob | history
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