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tracing/kprobe: Remove unneeded extra strchr() from create_trace_kprobe()

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By utilizing a temporary variable, we can avoid adding another call to
strchr(). Instead, save the first call to a temp variable, and then use that
variable as the reference to set the event variable.

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt (VMware) 2018-08-24 16:20:28 -04:00
parent 6bf4ca7fbc
commit d6b183eda4
1 changed files with 6 additions and 3 deletions
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9
kernel/trace/trace_kprobe.c
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@ -749,10 +749,13 @@ static int create_trace_kprobe(int argc, char **argv)
}
if (event) {
if (strchr(event, '/')) {
char *slash;
slash = strchr(event, '/');
if (slash) {
group = event;
event = strchr(group, '/') + 1;
event[-1] = '\0';
event = slash + 1;
slash[0] = '\0';
if (strlen(group) == 0) {
pr_info("Group name is not specified\n");
return -EINVAL;