ARM: 7913/1: fix framepointer check in unwind_frame
authorKonstantin Khlebnikov <k.khlebnikov@samsung.com>
Thu, 5 Dec 2013 13:23:48 +0000 (14:23 +0100)
committerBen Hutchings <ben@decadent.org.uk>
Fri, 3 Jan 2014 04:33:29 +0000 (04:33 +0000)
commit46b831f219fa519f61e3bff8aeabb75298f706d1
treed14e8ea679ea0d2bb9b4054f521c7beacda1f932
parent07b4041f9b344111091f6acc11a8d407d0ff78c7
ARM: 7913/1: fix framepointer check in unwind_frame

commit 3abb6671a9c04479c4bd026798a05f857393b7e2 upstream.

This patch fixes corner case when (fp + 4) overflows unsigned long,
for example: fp = 0xFFFFFFFF -> fp + 4 == 3.

Signed-off-by: Konstantin Khlebnikov <k.khlebnikov@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
arch/arm/kernel/stacktrace.c