[PATCH] scripts/rsatoc: fix printing of error message, if environment variable doen't contain a path

[Marc Kleine-Budde]

Fixes: 128ad3cbe043 ("scripts: Add rsatoc tool")
Signed-off-by: Marc Kleine-Budde <mkl at pengutronix.de>
---
 scripts/rsatoc.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/scripts/rsatoc.c b/scripts/rsatoc.c
index 647380214092..9410f33a654f 100644
--- a/scripts/rsatoc.c
+++ b/scripts/rsatoc.c
@@ -471,10 +471,12 @@ int main(int argc, char *argv[])
 		path++;
 
 		if (!strncmp(path, "__ENV__", 7)) {
-			path = getenv(path + 7);
+			const char *orig_path = path;
+			
+			path = getenv(orig_path + 7);
 			if (!path) {
 				fprintf(stderr, "%s doesn't contain a path\n",
-					path + 7);
+					orig_path + 7);
 				exit(1);
 			}
 		}
-- 
2.20.1