bootargs: Fix memory leak in linux_bootargs_get()

globalvar_get_match() returns an allocated string which may be
empty. We have to free() the empty string aswell.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 4 insertions, 2 deletions

diff --git a/common/bootargs.c b/common/bootargs.c
index a89f23a3f2..f0ab689158 100644
--- a/common/bootargs.c
+++ b/common/bootargs.c
@@ -56,19 +56,21 @@ const char *linux_bootargs_get(void)
 		bootargs = basprintf("%s mtdparts=%s", linux_bootargs,
 				       parts);
 		free(linux_bootargs);
-		free(parts);
 		linux_bootargs = bootargs;
 	}
 
+	free(parts);
+
 	parts = globalvar_get_match("linux.blkdevparts.", ";");
 	if (strlen(parts)) {
 		bootargs = basprintf("%s blkdevparts=%s", linux_bootargs,
 				       parts);
 		free(linux_bootargs);
-		free(parts);
 		linux_bootargs = bootargs;
 	}
 
+	free(parts);
+
 	return linux_bootargs;
 }