tree cd4bf3e96e474ae0e2f99e54dc9d6f9343542a92
parent fb7e7deb7fc348ae131268d30e391c8184285de6
author Jesse Brandeburg <jesse.brandeburg@intel.com> 1422471459 -0800
committer Ingo Molnar <mingo@kernel.org> 1423504062 +0100

genirq: Fix null pointer reference in irq_set_affinity_hint()

The recent set_affinity commit by me introduced some null
pointer dereferences on driver unload, because some drivers
call this function with a NULL argument. This fixes the issue
by just checking for null before setting the affinity mask.

Fixes: e2e64a932556 ("genirq: Set initial affinity in irq_set_affinity_hint()")
Reported-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
CC: netdev@vger.kernel.org
Link: http://lkml.kernel.org/r/20150128185739.9689.84588.stgit@jbrandeb-cp2.jf.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>