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cifs: smbd: Return -EINVAL when the number of iovs exceeds SMBDIRECT_MAX_SGE 

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>
This commit is contained in:
Long Li 2019-10-16 13:51:52 -07:00 committed by Steve French
parent b7a55bbd6d
commit 37941ea17d
1 changed files with 1 additions and 1 deletions
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2
fs/cifs/smbdirect.c
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@ -1069,7 +1069,7 @@ static int smbd_post_send_data(
if (n_vec > SMBDIRECT_MAX_SGE) { if (n_vec > SMBDIRECT_MAX_SGE) {
cifs_dbg(VFS, "Can't fit data to SGL, n_vec=%d\n", n_vec); 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); sg_init_table(sgl, n_vec);