From 058612a6f773824b6e53629855c3d811ce7906be Mon Sep 17 00:00:00 2001 From: "Tzvetomir Stoyanov (VMware)" Date: Tue, 21 Jul 2020 21:16:45 -0400 Subject: libtraceevent: Handle strdup() error in parse_option_name() 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+YdFA@mail.gmail.com Link: https://lore.kernel.org/linux-trace-devel/20200714103027.2477584-3-tz.stoyanov@gmail.com Link: https://lore.kernel.org/linux-trace-devel/20200716092014.2613403-3-tz.stoyanov@gmail.com Suggested-by: Namhyung Kim Signed-off-by: Tzvetomir Stoyanov (VMware) Acked-by: Namhyung Kim Cc: Andrew Morton Cc: Jiri Olsa Cc: linux-trace-devel@vger.kernel.org Link: http://lore.kernel.org/lkml/20200722011754.869289038@goodmis.org Signed-off-by: Steven Rostedt (VMware) Signed-off-by: Arnaldo Carvalho de Melo --- tools/lib/traceevent/event-plugin.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'tools/lib') 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) { -- cgit v1.2.3-58-ga151