From: "Tzvetomir Stoyanov (VMware)" <[email protected]>

Modified internal function parse_option_name() to return error and handle
that error in function callers in case strdup() fails.

Link: 
https://lore.kernel.org/r/cam9d7cizjf+fbk7yzmsbdgrx__4yaosmeq67d3swet8ff+y...@mail.gmail.com
Link: 
https://lore.kernel.org/linux-trace-devel/[email protected]
Link: 
https://lore.kernel.org/linux-trace-devel/[email protected]

Suggested-by: Namhyung Kim <[email protected]>
Acked-by: Namhyung Kim <[email protected]>
Signed-off-by: Tzvetomir Stoyanov (VMware) <[email protected]>
Signed-off-by: Steven Rostedt (VMware) <[email protected]>
---
 tools/lib/traceevent/event-plugin.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/tools/lib/traceevent/event-plugin.c 
b/tools/lib/traceevent/event-plugin.c
index aa6f43290cd3..a39eeb6ef1f2 100644
--- a/tools/lib/traceevent/event-plugin.c
+++ b/tools/lib/traceevent/event-plugin.c
@@ -254,7 +254,7 @@ void tep_plugin_remove_options(struct tep_plugin_option 
*options)
        }
 }
 
-static void parse_option_name(char **option, char **plugin)
+static int parse_option_name(char **option, char **plugin)
 {
        char *p;
 
@@ -265,8 +265,9 @@ static void parse_option_name(char **option, char **plugin)
                *p = '\0';
                *option = strdup(p + 1);
                if (!*option)
-                       return;
+                       return -1;
        }
+       return 0;
 }
 
 static struct tep_plugin_option *
@@ -325,7 +326,8 @@ int tep_plugin_add_option(const char *name, const char *val)
        if (!option_str)
                return -ENOMEM;
 
-       parse_option_name(&option_str, &plugin);
+       if (parse_option_name(&option_str, &plugin) < 0)
+               return -ENOMEM;
 
        /* If the option exists, update the val */
        for (op = trace_plugin_options; op; op = op->next) {
-- 
2.26.2


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