[PATCH] fixup! FIT: compare key name hint with streq_ptr for clarity

[Ahmad Fatoum <a.fatoum@pengutronix.de>]

FIT: fix use of multiple FIT keys

streq_ptr returns true if both arguments are NULL. This can happen if we
have no FIT key name hints at all and shouldn't lead to ignoring keys,
so add the check for the hint.

Cc: Marco Felsch <m.felsch@pengutronix.de>
Reported-by: Jonas Rebmann <jre@pengutronix.de>
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
 common/image-fit.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/common/image-fit.c b/common/image-fit.c
index 3017ccb5048f..22f768e7a070 100644
--- a/common/image-fit.c
+++ b/common/image-fit.c
@@ -290,8 +290,8 @@ static int fit_check_signature(struct fit_handle *handle, struct device_node *si
 	for_each_public_key(key) {
 		fail_reason = "verification failed";
 
-		/* Don't recheck with same key as before */
-		if (streq_ptr(key->key_name_hint, key_name))
+		/* Don't recheck with same key_name as before */
+		if (key_name && streq_ptr(key->key_name_hint, key_name))
 			continue;
 
 		ret = public_key_verify(key, sig_value, sig_len, hash, algo);
-- 
2.47.3