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authorMarcin Slusarz <marcin.slusarz@gmail.com>2011-01-28 11:00:33 -0500
committerGreg Kroah-Hartman <gregkh@suse.de>2011-02-17 15:14:45 -0800
commit1ac0a5efc2227ca74f36c4e7d2f166a8e0469216 (patch)
tree3fd1b6f160693eafee43bedbffa5b05bf837d1b8 /kernel
parenta716ed74c75843f5e15c1cf2dedd6de8a882bd9c (diff)
watchdog: Don't change watchdog state on read of sysctl
commit 9ffdc6c37df131f89d52001e0ef03091b158826f upstream. Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> [ add {}'s to fix a warning ] Signed-off-by: Don Zickus <dzickus@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <1296230433-6261-3-git-send-email-dzickus@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/watchdog.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index b4560a8480c9..2886c0388f93 100644
--- a/kernel/watchdog.c
+++ b/kernel/watchdog.c
@@ -497,10 +497,12 @@ int proc_dowatchdog_enabled(struct ctl_table *table, int write,
{
proc_dointvec(table, write, buffer, length, ppos);
- if (watchdog_enabled)
- watchdog_enable_all_cpus();
- else
- watchdog_disable_all_cpus();
+ if (write) {
+ if (watchdog_enabled)
+ watchdog_enable_all_cpus();
+ else
+ watchdog_disable_all_cpus();
+ }
return 0;
}