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authorRussell King <rmk+kernel@arm.linux.org.uk>2009-09-22 20:54:53 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2009-09-22 21:01:40 +0100
commitae19ffbadc1b2100285a5b5b3d0a4e0a11390904 (patch)
tree3c2086ab67398a019089a47ca3f362a4bc6db74f /kernel/trace/trace_event_profile.c
parent34e84f39a27d059a3e6ec6e8b94aafa702e6f220 (diff)
parent9173a8ef24a6b1b8031507b35b8ffe5f85a87692 (diff)
downloadop-kernel-dev-ae19ffbadc1b2100285a5b5b3d0a4e0a11390904.zip
op-kernel-dev-ae19ffbadc1b2100285a5b5b3d0a4e0a11390904.tar.gz
Merge branch 'master' into for-linus
Diffstat (limited to 'kernel/trace/trace_event_profile.c')
-rw-r--r--kernel/trace/trace_event_profile.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/kernel/trace/trace_event_profile.c b/kernel/trace/trace_event_profile.c
index 11ba5bb..55a25c9 100644
--- a/kernel/trace/trace_event_profile.c
+++ b/kernel/trace/trace_event_profile.c
@@ -5,6 +5,7 @@
*
*/
+#include <linux/module.h>
#include "trace.h"
int ftrace_profile_enable(int event_id)
@@ -14,7 +15,8 @@ int ftrace_profile_enable(int event_id)
mutex_lock(&event_mutex);
list_for_each_entry(event, &ftrace_events, list) {
- if (event->id == event_id && event->profile_enable) {
+ if (event->id == event_id && event->profile_enable &&
+ try_module_get(event->mod)) {
ret = event->profile_enable(event);
break;
}
@@ -32,6 +34,7 @@ void ftrace_profile_disable(int event_id)
list_for_each_entry(event, &ftrace_events, list) {
if (event->id == event_id) {
event->profile_disable(event);
+ module_put(event->mod);
break;
}
}
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