[PATCH 4.19 172/338] NFS: remove unneeded check in decode_devicenotify_args()

[Greg Kroah-Hartman]

From: Alexey Khoroshilov <khoroshilov@xxxxxxxxx>

[ Upstream commit cb8fac6d2727f79f211e745b16c9abbf4d8be652 ]

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Overflow check in not needed anymore after we switch to kmalloc_array().

Signed-off-by: Alexey Khoroshilov <khoroshilov@xxxxxxxxx>
Fixes: a4f743a6bb20 ("NFSv4.1: Convert open-coded array allocation calls to kmalloc_array()")
Signed-off-by: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 fs/nfs/callback_xdr.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c
index 76aa1b456c52..2f84c612838c 100644
--- a/fs/nfs/callback_xdr.c
+++ b/fs/nfs/callback_xdr.c
@@ -281,10 +281,6 @@ __be32 decode_devicenotify_args(struct svc_rqst *rqstp,
 	n = ntohl(*p++);
 	if (n == 0)
 		goto out;
-	if (n > ULONG_MAX / sizeof(*args->devs)) {
-		status = htonl(NFS4ERR_BADXDR);
-		goto out;
-	}
 
 	args->devs = kmalloc_array(n, sizeof(*args->devs), GFP_KERNEL);
 	if (!args->devs) {
-- 
2.34.1