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perf: arm-cmn: Fix unsigned comparison to less than zero 

Ensure that the 'irq' field of 'struct arm_cmn_dtc' is a signed int
so that it can be compared '< 0'.

Link: https://lore.kernel.org/r/20200929170835.GA15956@embeddedor
Addresses-Coverity-ID: 1497488 ("Unsigned compared against 0")
Fixes: 0ba64770a2 ("perf: Add Arm CMN-600 PMU driver")
Reported-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>
zero-sugar-mainline-defconfig
Will Deacon 2020-10-01 11:54:54 +01:00
parent d8f6267f7c
commit d9ef632fab
1 changed files with 1 additions and 1 deletions
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drivers/perf/arm-cmn.c
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@ -217,7 +217,7 @@ struct arm_cmn_node {
struct arm_cmn_dtc {
void __iomem *base;
unsigned int irq;
int irq;
int irq_friend;
bool cc_active;