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tracing/kprobe: Fix uninitialized variable bug

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There is a potential execution path in which variable *ret* is returned
without being properly initialized, previously.

Fix this by initializing variable *ret* to 0.

Link: http://lkml.kernel.org/r/20200205223404.GA3379@embeddedor

Addresses-Coverity-ID: 1491142 ("Uninitialized scalar variable")
Fixes: 2a588dd1d5 ("tracing: Add kprobe event command generation functions")
Reviewed-by: Tom Zanussi <zanussi@kernel.org>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
This commit is contained in:
Gustavo A. R. Silva 2020-02-05 16:34:04 -06:00 committed by Steven Rostedt (VMware)
parent 26445f98ea
commit 10f129cb59
1 changed files with 1 additions and 1 deletions
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2
kernel/trace/trace_kprobe.c
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@ -1012,7 +1012,7 @@ int __kprobe_event_add_fields(struct dynevent_cmd *cmd, ...)
{
struct dynevent_arg arg;
va_list args;
int ret;
int ret = 0;
if (cmd->type != DYNEVENT_TYPE_KPROBE)
return -EINVAL;