From: Namhyung Kim <namhyung@gmail.com>
Date: Tue, 26 Oct 2010 21:22:47 +0000 (-0700)
Subject: printk: add lock context annotation
X-Git-Tag: firefly_0821_release~7613^2~3628^2~54
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=8155c02a44a95562e1ae0999360eb31288d7195a;p=firefly-linux-kernel-4.4.55.git

printk: add lock context annotation

acquire_console_semaphore_for_printk() releases logbuf_lock but
was missing proper annotation. Add it.

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/kernel/printk.c b/kernel/printk.c
index d18933a92819..6ff26151f4ff 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -647,6 +647,7 @@ static inline int can_use_console(unsigned int cpu)
  * released but interrupts still disabled.
  */
 static int acquire_console_semaphore_for_printk(unsigned int cpu)
+	__releases(&logbuf_lock)
 {
 	int retval = 0;