[PATCH] lib: rsa: Also check for presence of r-squared property

[Jan Kiszka]

From: Jan Kiszka <jan.kiszka at siemens.com>

Better than crashing later if it is missing.

Signed-off-by: Jan Kiszka <jan.kiszka at siemens.com>
---
 lib/rsa/rsa-verify.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/rsa/rsa-verify.c b/lib/rsa/rsa-verify.c
index 80e817314b..f7ae174cb0 100644
--- a/lib/rsa/rsa-verify.c
+++ b/lib/rsa/rsa-verify.c
@@ -445,7 +445,7 @@ static int rsa_verify_with_keynode(struct image_sign_info *info,
 
 	prop.rr = fdt_getprop(blob, node, "rsa,r-squared", NULL);
 
-	if (!prop.num_bits || !prop.modulus) {
+	if (!prop.num_bits || !prop.modulus || !prop.rr) {
 		debug("%s: Missing RSA key info", __func__);
 		return -EFAULT;
 	}
-- 
2.26.1