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(parent: 6b5b3bf) | patch
watchdog/hardlockup/perf: Cure UP damage
authorThomas Gleixner <tglx@linutronix.de>
Mon, 25 Sep 2017 18:21:54 +0000 (20:21 +0200)
committerThomas Gleixner <tglx@linutronix.de>
Mon, 25 Sep 2017 18:21:54 +0000 (20:21 +0200)
commit3d41ed7df5cad576bb8af1c5b8bd09ecf66d11e6
tree0814accfe914507045c65a7e12b38acbd03d1b81tree | snapshot
parent6b5b3bf78b6988218d40db4b5d74a0c96d860660commit | diff
watchdog/hardlockup/perf: Cure UP damage

for_each_cpu() unintuitively reports CPU0 as set independend of the actual
cpumask content on UP kernels. That leads to a NULL pointer dereference
when the cleanup function is invoked and there is no event to clean up.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
kernel/watchdog_hld.c diff | blob | history
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