From: Robert Richter <robert.richter@amd.com>
Date: Fri, 23 Dec 2011 13:24:25 +0000 (+0100)
Subject: perf/x86: Fix raw_spin_unlock_irqrestore() usage
X-Git-Tag: firefly_0821_release~3680^2~3653^3~3
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=2e64694de21a812d637dcbea4471ad1f7897b049;p=firefly-linux-kernel-4.4.55.git

perf/x86: Fix raw_spin_unlock_irqrestore() usage

Use raw_spin_unlock_irqrestore() as equivalent to
raw_spin_lock_irqsave().

Signed-off-by: Robert Richter <robert.richter@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1324646665-13334-1-git-send-email-robert.richter@amd.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
index 8d601b18bf9f..121f1be4da19 100644
--- a/arch/x86/kernel/cpu/perf_event_intel.c
+++ b/arch/x86/kernel/cpu/perf_event_intel.c
@@ -1169,7 +1169,7 @@ again:
 		 */
 		c = &unconstrained;
 	} else if (intel_try_alt_er(event, orig_idx)) {
-		raw_spin_unlock(&era->lock);
+		raw_spin_unlock_irqrestore(&era->lock, flags);
 		goto again;
 	}
 	raw_spin_unlock_irqrestore(&era->lock, flags);