tracepoints: use unregister return value
Impact: bugfix.
Unregistering a tracepoint can fail. Return the error value.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h
index 69648c5..c60a791 100644
--- a/include/linux/tracepoint.h
+++ b/include/linux/tracepoint.h
@@ -73,9 +73,9 @@
return tracepoint_probe_register(#name ":" #proto, \
(void *)probe); \
} \
- static inline void unregister_trace_##name(void (*probe)(proto))\
+ static inline int unregister_trace_##name(void (*probe)(proto)) \
{ \
- tracepoint_probe_unregister(#name ":" #proto, \
+ return tracepoint_probe_unregister(#name ":" #proto, \
(void *)probe); \
}
@@ -92,8 +92,10 @@
{ \
return -ENOSYS; \
} \
- static inline void unregister_trace_##name(void (*probe)(proto))\
- { }
+ static inline int unregister_trace_##name(void (*probe)(proto)) \
+ { \
+ return -ENOSYS; \
+ }
static inline void tracepoint_update_probe_range(struct tracepoint *begin,
struct tracepoint *end)