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Power: Add guard condition for maximum wakeup reasons 

Ensure the array for the wakeup reason IRQs does not overflow.

Change-Id: Iddc57a3aeb1888f39d4e7b004164611803a4d37c
Signed-off-by: Ruchi Kandoi <kandoiruchi@google.com>
(cherry picked from commit b5ea40cdfcf38296535f931a7e5e7bf47b6fad7f)
Git-commit: 8b531976d51c33d5ef83ca2637b08afc2ed51802
Git-repo: https://android.googlesource.com/kernel/common.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
This commit is contained in:
Ruchi Kandoi 2014-03-07 12:54:30 -08:00 committed by Ian Maund
parent d92147bb7b
commit ed197f7d57
1 changed files with 7 additions and 0 deletions
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7
kernel/power/wakeup_reason.c
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@ -79,6 +79,13 @@ void log_wakeup_reason(int irq)
printk(KERN_INFO "Resume caused by IRQ %d\n", irq);
spin_lock(&resume_reason_lock);
if (irq_count == MAX_WAKEUP_REASON_IRQS) {
spin_unlock(&resume_reason_lock);
printk(KERN_WARNING "Resume caused by more than %d IRQs\n",
MAX_WAKEUP_REASON_IRQS);
return;
}
irq_list[irq_count++] = irq;
spin_unlock(&resume_reason_lock);
}