Commit 48dd0fed authored by Jaswinder Singh Rajput's avatar Jaswinder Singh Rajput Committed by Ingo Molnar
Browse files

tracing: trace_output.c, fix false positive compiler warning

This compiler warning:

  CC      kernel/trace/trace_output.o
 kernel/trace/trace_output.c: In function ‘register_ftrace_event’:
 kernel/trace/trace_output.c:544: warning: ‘list’ may be used uninitialized in this function

Is wrong as 'list' is always initialized - but GCC (4.3.2) does not
recognize this relationship properly.

Work around the warning by initializing the variable to NULL.

[ Impact: fix false positive compiler warning ]

Signed-off-by: default avatarJaswinder Singh Rajput <>
Acked-by: default avatarSteven Rostedt <>
LKML-Reference: <new-submission>
Signed-off-by: default avatarIngo Molnar <>
parent 22a7c31a
......@@ -541,7 +541,7 @@ int register_ftrace_event(struct trace_event *event)
if (!event->type) {
struct list_head *list;
struct list_head *list = NULL;
if (next_event_type > FTRACE_MAX_EVENT) {
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