[Sound-open-firmware] [[RFC PATCH] 1/3] rimage: don't add date to css if date is NULL.

[xionghu.luo at linux.intel.com]

From: Luo Xionghu <xionghu.luo at intel.com>

Avoid NULL dereference if function localtime return invalid value.

Signed-off-by: Luo Xionghu <xionghu.luo at intel.com>
---
 rimage/css.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/rimage/css.c b/rimage/css.c
index f662f0b..064a75a 100644
--- a/rimage/css.c
+++ b/rimage/css.c
@@ -33,6 +33,9 @@ void ri_css_hdr_create(struct image *image)
 	/* get local time and date */
 	gettimeofday(&tv, NULL);
 	date = localtime(&tv.tv_sec);
+	if (date == NULL)
+		return;
+
 	date->tm_year += 1900;
 	fprintf(stdout, " css: set build date to %d:%2.2d:%2.2d\n",
 		date->tm_year, date->tm_mon, date->tm_mday);
-- 
2.11.0