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smb3: add additional null check in SMB2_tcon 

Although unlikely to be possible for rsp to be null here,
the check is safer to add, and quiets a Coverity warning.

Addresses-Coverity: 1420428 ("Explicit null dereferenced")
Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Steve French 2021-11-11 16:18:14 -06:00
parent 6b7895182c
commit bac35395d2
1 changed files with 1 additions and 1 deletions
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2
fs/cifs/smb2pdu.c
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@ -1840,7 +1840,7 @@ SMB2_tcon(const unsigned int xid, struct cifs_ses *ses, const char *tree,
cifs_small_buf_release(req);
rsp = (struct smb2_tree_connect_rsp *)rsp_iov.iov_base;
trace_smb3_tcon(xid, tcon->tid, ses->Suid, tree, rc);
if (rc != 0) {
if ((rc != 0) || (rsp == NULL)) {
cifs_stats_fail_inc(tcon, SMB2_TREE_CONNECT_HE);
tcon->need_reconnect = true;
goto tcon_error_exit;