[U-Boot] [PATCH v4 06/11] mtd: Be more strict on the "mtdparts=" prefix check

[Boris Brezillon]

strstr() does not guarantee that the string we're searching for is
placed at the beginning. Use strncmp() instead.

Fixes: 5db66b3aee6f ("cmd: mtd: add 'mtd' command")
Signed-off-by: Boris Brezillon <boris.brezillon at bootlin.com>
Tested-by: Heiko Schocher <hs at denx.de>
---
Changes in v4:
- Add T-b tag

Changes in v3:
- None

Changes in v2:
- New patch
---
 drivers/mtd/mtd_uboot.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/mtd_uboot.c b/drivers/mtd/mtd_uboot.c
index c4434d70520d..d551aee20203 100644
--- a/drivers/mtd/mtd_uboot.c
+++ b/drivers/mtd/mtd_uboot.c
@@ -215,7 +215,7 @@ int mtd_probe_devices(void)
 		return 0;
 
 	/* Start the parsing by ignoring the extra 'mtdparts=' prefix, if any */
-	if (strstr(mtdparts, "mtdparts="))
+	if (!strncmp(mtdparts, "mtdparts=", sizeof("mtdparts=") - 1))
 		mtdparts += 9;
 
 	/* For each MTD device in mtdparts */
-- 
2.17.1