crypto: digest: Return -errno if stat() fails

Strictly speaking, stat() doesn't return a detailed error code as its
return value and it can and should be obtained via 'errno'.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 2 insertions, 5 deletions

diff --git a/crypto/digest.c b/crypto/digest.c
index 230db26e84..2c4de2e4f1 100644
--- a/crypto/digest.c
+++ b/crypto/digest.c
@@ -317,12 +317,9 @@ int digest_file(struct digest *d, const char *filename,
 		const unsigned char *sig)
 {
 	struct stat st;
-	int ret;
-
-	ret = stat(filename, &st);
 
-	if (ret < 0)
-		return ret;
+	if (stat(filename, &st))
+		return -errno;
 
 	return digest_file_window(d, filename, hash, sig, 0, st.st_size);
 }