From: Jean Pihet <jean.pihet@linaro.org>
Date: Mon, 7 Jul 2014 13:45:08 +0000 (+0100)
Subject: ARM: perf: Check that current->mm is alive before getting user callchain
X-Git-Tag: sz_173~71
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1768736891543baf955e67d6565b7330f71e8984;p=pandora-kernel.git

ARM: perf: Check that current->mm is alive before getting user callchain

An event may occur when an mm is already released.

As per commit 20afc60f892d285fde179ead4b24e6a7938c2f1b
 'x86, perf: Check that current->mm is alive before getting user callchain'

Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Jean Pihet <jean.pihet@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---

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