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authorUlrich Obergfell <uobergfe@redhat.com>2015-11-06 02:44:36 (GMT)
committerLinus Torvalds <torvalds@linux-foundation.org>2015-11-06 03:34:48 (GMT)
commitc993590c6ae6273681d9fb2a8d26dce03bf9d96c (patch)
tree7a920849133ef3296975b5febbb567bcc532e203
parentb43cb43cb85b91d79d9f0719ff581e8cb6dfbb8f (diff)
downloadlinux-c993590c6ae6273681d9fb2a8d26dce03bf9d96c.tar.xz
watchdog: implement error handling in lockup_detector_suspend()
lockup_detector_suspend() now handles errors from watchdog_park_threads(). Signed-off-by: Ulrich Obergfell <uobergfe@redhat.com> Reviewed-by: Aaron Tomlin <atomlin@redhat.com> Acked-by: Don Zickus <dzickus@redhat.com> Cc: Ulrich Obergfell <uobergfe@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--kernel/watchdog.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index 704f933..e8b19db 100644
--- a/kernel/watchdog.c
+++ b/kernel/watchdog.c
@@ -707,6 +707,11 @@ int lockup_detector_suspend(void)
if (ret == 0)
watchdog_suspended++;
+ else {
+ watchdog_disable_all_cpus();
+ pr_err("Failed to suspend lockup detectors, disabled\n");
+ watchdog_enabled = 0;
+ }
mutex_unlock(&watchdog_proc_mutex);