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authorSteven Rostedt (VMware) <rostedt@goodmis.org>2018-02-22 22:32:51 -0500
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2018-03-10 16:06:05 -0500
commita0ff08fd4e3f8b1cbc18950a8bf1f9067f7e700a (patch)
tree32065b34b85ed95c63ead2e7704f1d9667f55dc6 /kernel
parentf06eec4d0f2c784788ed2e9aa12c9227c2341771 (diff)
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tracing: Remove BUG_ON() from append_filter_string()
There's no reason to BUG if there's a bug in the filtering code. Simply do a warning and return. Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/trace/trace_events_filter.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
index a764aec3c9a1..819a13c3e13c 100644
--- a/kernel/trace/trace_events_filter.c
+++ b/kernel/trace/trace_events_filter.c
@@ -681,7 +681,8 @@ static int append_filter_string(struct event_filter *filter,
int newlen;
char *new_filter_string;
- BUG_ON(!filter->filter_string);
+ if (WARN_ON(!filter->filter_string))
+ return -EINVAL;
newlen = strlen(filter->filter_string) + strlen(string) + 1;
new_filter_string = kmalloc(newlen, GFP_KERNEL);
if (!new_filter_string)