[RFC PATCH 3/3] ratelimit: Fix return value when fail to get lock

[Yong Zhang]

>From log of commit edaac8e3167501cda336231d00611bf59c164346,
It seems that we want to suppress the callback when trylock
fails.

Signed-off-by: Yong Zhang <yong.zhang@xxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Christian Borntraeger <borntraeger@xxxxxxxxxx>
---
 lib/ratelimit.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/lib/ratelimit.c b/lib/ratelimit.c
index 29a10b3..358638f 100644
--- a/lib/ratelimit.c
+++ b/lib/ratelimit.c
@@ -40,7 +40,7 @@ int ___ratelimit(struct ratelimit_state *rs, const char *func)
 	 * the entity that is holding the lock already:
 	 */
 	if (!spin_trylock_irqsave(&rs->lock, flags))
-		return 1;
+		return 0;
 
 	if (!rs->begin)
 		rs->begin = jiffies;
-- 
1.6.3.3

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