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List:       kernel-janitors
Subject:    [patch] CIFS: remove an unneeded NULL check
From:       Dan Carpenter <dan.carpenter () oracle ! com>
Date:       2015-04-30 14:30:24
Message-ID: 20150430143024.GA22086 () mwanda
[Download RAW message or body]

Smatch complains because we dereference "ses->server" without checking
some lines earlier inside the call to get_next_mid(ses->server).

	fs/cifs/cifssmb.c:4921 CIFSGetDFSRefer()
	warn: variable dereferenced before check 'ses->server' (see line 4899)

There is only one caller for this function get_dfs_path() and it always
passes a non-null "ses->server" pointer so this NULL check can be
removed.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 1091aff..f26ffbf 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -4918,7 +4918,7 @@ getDFSRetry:
 		strncpy(pSMB->RequestFileName, search_name, name_len);
 	}
 
-	if (ses->server && ses->server->sign)
+	if (ses->server->sign)
 		pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE;
 
 	pSMB->hdr.Uid = ses->Suid;
--
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