blobmsg: fix wrong payload len passed from blobmsg_check_array

Fix incorrect use of blobmsg_len() on passed blobmsg to
blobmsg_check_array_len() introduced in commit 379cd33d1992
("fix wrong payload len passed from blobmsg_check_array") by using correct
blob_len().

By using blobmsg_len() a value too small was passed to blobmsg_check_array()
which could lead to this function returning an error when there is none.

Fixes: 379cd33d1992 ("fix wrong payload len passed from blobmsg_check_array")
Signed-off-by: Chris Nisbet <nischris@gmail.com>
[add fixes tag, rewrap commit message]
Signed-off-by: Jo-Philipp Wich <jo@mein.io>

1 files changed, 1 insertions, 1 deletions

diff --git a/blobmsg.c b/blobmsg.c
index 7620784..8b9877d 100644
--- a/blobmsg.c
+++ b/blobmsg.c
@@ -114,7 +114,7 @@ bool blobmsg_check_attr_len(const struct blob_attr *attr, bool name, size_t len)
 
 int blobmsg_check_array(const struct blob_attr *attr, int type)
 {
-	return blobmsg_check_array_len(attr, type, blobmsg_len(attr));
+	return blobmsg_check_array_len(attr, type, blob_len(attr));
 }
 
 int blobmsg_check_array_len(const struct blob_attr *attr, int type, size_t len)