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authorGustavo A. R. Silva <gustavo@embeddedor.com>2020-02-06 01:34:04 +0300
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2020-02-10 20:07:42 +0300
commit10f129cb59cf6b4aee419ce4b1325fc532d975fb (patch)
tree3e1da8346794e91a61869d7dfe63a12cf36e8e37
parent26445f98ead38b90423a2deffce2caa3b97a3d78 (diff)
downloadlinux-10f129cb59cf6b4aee419ce4b1325fc532d975fb.tar.xz
tracing/kprobe: Fix uninitialized variable bug
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: 2a588dd1d5d6 ("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>
-rw-r--r--kernel/trace/trace_kprobe.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index 51efc790aea8..21bafd48f2ac 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -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;