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authorWill Deacon <will.deacon@arm.com>2010-11-04 18:23:50 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2010-11-07 16:12:38 +0000
commitc3b291d98878a5f25fee56255bcfa420e85dff59 (patch)
tree9e3a996e5985fb98434ea6c1103a94f305707cb3 /arch/arm/kernel
parentd33aadbf8e9ba0b844c2a4a03723969c913ab03a (diff)
downloadblackbird-op-linux-c3b291d98878a5f25fee56255bcfa420e85dff59.tar.gz
blackbird-op-linux-c3b291d98878a5f25fee56255bcfa420e85dff59.zip
ARM: 6469/1: perf-events: squash compiler warning
armv7_pmnc_counter_has_overflowed can return uninitialised data if an invalid counter is specified. This patch fixes the code to return 0 in this case, which squashes the compiler warning from GCC 4.5. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/kernel')
-rw-r--r--arch/arm/kernel/perf_event.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c
index 49643b1467e6..07a50357492a 100644
--- a/arch/arm/kernel/perf_event.c
+++ b/arch/arm/kernel/perf_event.c
@@ -1749,7 +1749,7 @@ static inline int armv7_pmnc_has_overflowed(unsigned long pmnc)
static inline int armv7_pmnc_counter_has_overflowed(unsigned long pmnc,
enum armv7_counters counter)
{
- int ret;
+ int ret = 0;
if (counter == ARMV7_CYCLE_COUNTER)
ret = pmnc & ARMV7_FLAG_C;
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