From: Long Li <longli@microsoft.com>
Date: Wed, 16 Oct 2019 13:51:52 -0700
Subject: [PATCH] cifs: smbd: Return -EINVAL when the number of iovs exceeds
SMBDIRECT_MAX_SGE
Git-commit: 37941ea17d3f8eb2f5ac2f59346fab9e8439271a
References: bsc#1144333
Patch-mainline: v5.5-rc1
While it's not friendly to fail user processes that issue more iovs
than we support, at least we should return the correct error code so the
user process gets a chance to retry with smaller number of iovs.
Signed-off-by: Long Li <longli@microsoft.com>
Cc: stable@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>
Acked-by: Paulo Alcantara <palcantara@suse.de>
---
fs/cifs/smbdirect.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/cifs/smbdirect.c b/fs/cifs/smbdirect.c
index 3c91fa97c9a8..64c5b872220d 100644
--- a/fs/cifs/smbdirect.c
+++ b/fs/cifs/smbdirect.c
@@ -1069,7 +1069,7 @@ static int smbd_post_send_data(
if (n_vec > SMBDIRECT_MAX_SGE) {
cifs_dbg(VFS, "Can't fit data to SGL, n_vec=%d\n", n_vec);
- return -ENOMEM;
+ return -EINVAL;
}
sg_init_table(sgl, n_vec);
--
2.25.1