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authorOGAWA Hirofumi <hirofumi@mail.parknet.co.jp>2010-05-24 14:33:11 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-25 08:07:03 -0700
commitd8521fcc5e0ad3e79bbc4231bb20a6cdc2b50164 (patch)
tree7469b407cb8a87d26733cea33a1570c2433e014b /include/linux/kernel.h
parentfa1f68db6ca7ebb6fc4487ac215bffba06c01c28 (diff)
downloadblackbird-op-linux-d8521fcc5e0ad3e79bbc4231bb20a6cdc2b50164.tar.gz
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printk_ratelimited(): fix uninitialized spinlock
ratelimit_state initialization of printk_ratelimited() seems broken. This fixes it by using DEFINE_RATELIMIT_STATE() to initialize spinlock properly. Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Cc: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/kernel.h')
-rw-r--r--include/linux/kernel.h15
1 files changed, 7 insertions, 8 deletions
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index ea8490d7020e..05f332afc9e0 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -424,14 +424,13 @@ static inline char *pack_hex_byte(char *buf, u8 byte)
* no local ratelimit_state used in the !PRINTK case
*/
#ifdef CONFIG_PRINTK
-#define printk_ratelimited(fmt, ...) ({ \
- static struct ratelimit_state _rs = { \
- .interval = DEFAULT_RATELIMIT_INTERVAL, \
- .burst = DEFAULT_RATELIMIT_BURST, \
- }; \
- \
- if (__ratelimit(&_rs)) \
- printk(fmt, ##__VA_ARGS__); \
+#define printk_ratelimited(fmt, ...) ({ \
+ static DEFINE_RATELIMIT_STATE(_rs, \
+ DEFAULT_RATELIMIT_INTERVAL, \
+ DEFAULT_RATELIMIT_BURST); \
+ \
+ if (__ratelimit(&_rs)) \
+ printk(fmt, ##__VA_ARGS__); \
})
#else
/* No effect, but we still get type checking even in the !PRINTK case: */
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