[U-Boot] [PATCH 6/8] rsa: Fix missing memory leak on error in fdt_add_bignum()

[Simon Glass]

Thsi function can fail without freeing all its memory. Fix it.

Reported-by: Coverity (CID: 131217)
Signed-off-by: Simon Glass <sjg at chromium.org>
---

 lib/rsa/rsa-sign.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/lib/rsa/rsa-sign.c b/lib/rsa/rsa-sign.c
index d2788bf79a..2a09d2b19e 100644
--- a/lib/rsa/rsa-sign.c
+++ b/lib/rsa/rsa-sign.c
@@ -667,15 +667,13 @@ static int fdt_add_bignum(void *blob, int noffset, const char *prop_name,
 	 * might fail several times
 	 */
 	ret = fdt_setprop(blob, noffset, prop_name, buf, size);
-	if (ret)
-		return -FDT_ERR_NOSPACE;
 	free(buf);
 	BN_free(tmp);
 	BN_free(big2);
 	BN_free(big32);
 	BN_free(big2_32);
 
-	return ret;
+	return ret ? -FDT_ERR_NOSPACE : 0;
 }
 
 int rsa_add_verify_data(struct image_sign_info *info, void *keydest)
-- 
2.18.0.rc1.242.g61856ae69a-goog