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| author | Carsten Emde <C.Emde@osadl.org> | 2012-06-19 10:43:16 +0200 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2012-07-02 21:34:25 +0200 |
| commit | 1c17e4d4437d8045a596d9f06c1558dc09e2b372 (patch) | |
| tree | 3ca3d1752b954211d8f3e295d107bd0bcca65a9d /kernel/rcutree_plugin.h | |
| parent | rcu: Fix rcu_is_cpu_idle() #ifdef in TINY_RCU (diff) | |
| download | linux-1c17e4d4437d8045a596d9f06c1558dc09e2b372.tar.xz linux-1c17e4d4437d8045a596d9f06c1558dc09e2b372.zip | |
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@osadl.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/rcutree_plugin.h')
| -rw-r--r-- | 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 4b6b17cdf66b..395cdd1e0634 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 */ |