From: Heinrich Schuchardt <xypron.glpk@gmx.de>
Date: Thu, 20 Aug 2020 19:11:17 +0000 (+0200)
Subject: lib/rsa: correct check after allocation in fdt_add_bignum()
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=de95930946f5de3b5f43aaf4153a334d841d4f3c;p=u-boot.git

lib/rsa: correct check after allocation in fdt_add_bignum()

After allocating to pointer ctx we should check that pointer and not
another pointer already checked above.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
---

diff --git a/lib/rsa/rsa-sign.c b/lib/rsa/rsa-sign.c
index 40ca1e1f57..1f0d81bd7a 100644
--- a/lib/rsa/rsa-sign.c
+++ b/lib/rsa/rsa-sign.c
@@ -708,7 +708,7 @@ static int fdt_add_bignum(void *blob, int noffset, const char *prop_name,
 		return -ENOMEM;
 	}
 	ctx = BN_CTX_new();
-	if (!tmp) {
+	if (!ctx) {
 		fprintf(stderr, "Out of memory (bignum context)\n");
 		return -ENOMEM;
 	}