Commit-ID: 1c17e4d4437d8045a596d9f06c1558dc09e2b372
Gitweb: http://git.kernel.org/tip/1c17e4d4437d8045a596d9f06c1558dc09e2b372
Author: Carsten Emde <C.Emde@xxxxxxxxx>
AuthorDate: Tue, 19 Jun 2012 10:43:16 +0200
Committer: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
CommitDate: Mon, 2 Jul 2012 12:34:25 -0700
rcu: Prevent uninitialized string in RCU CPU stall info
An uninitialized string may be displayed at the end of the rcu_preempt
detected stall info such as
0: (1 GPs behind) idle=075/140000000000000/0 =8?^D=8?^D
^^^^^^^^^^
if CONFIG_RCU_FAST_NO_HZ is not defined.
This trivial patch clears the string in this case.
Signed-off-by: Carsten Emde <C.Emde@xxxxxxxxx>
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
---
kernel/rcutree_plugin.h | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h
index 4b6b17c..395cdd1 100644
--- a/kernel/rcutree_plugin.h
+++ b/kernel/rcutree_plugin.h
@@ -2224,6 +2224,7 @@ static void print_cpu_stall_fast_no_hz(char *cp, int cpu)
static void print_cpu_stall_fast_no_hz(char *cp, int cpu)
{
+ *cp = '\0';
}
#endif /* #else #ifdef CONFIG_RCU_FAST_NO_HZ */
--
To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
|