cifs: Fix wrong return value checking when GETFLAGS

stable inclusion
from stable-v5.10.156
commit e13ef43813ebf0584488df98e21eaa049f920d3d
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I7MCG1

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=e13ef43813ebf0584488df98e21eaa049f920d3d

--------------------------------

[ Upstream commit 92bbd67a ]

The return value of CIFSGetExtAttr is negative, should be checked
with -EOPNOTSUPP rather than EOPNOTSUPP.

Fixes: 64a5cfa6 ("Allow setting per-file compression via SMB2/3")
Signed-off-by: NZhang Xiaoxu <zhangxiaoxu5@huawei.com>
Signed-off-by: NSteve French <stfrench@microsoft.com>
Signed-off-by: NSasha Levin <sashal@kernel.org>
Signed-off-by: Nsanglipeng <sanglipeng1@jd.com>
(cherry picked from commit ca5052f7)

fs/cifs/ioctl.c

@@ -193,7 +193,7 @@ long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
 					rc = put_user(ExtAttrBits &
 						FS_FL_USER_VISIBLE,
 						(int __user *)arg);
-				if (rc != EOPNOTSUPP)
+				if (rc != -EOPNOTSUPP)
 					break;
 			}
 #endif /* CONFIG_CIFS_POSIX */
@@ -222,7 +222,7 @@ long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
 			 *		       pSMBFile->fid.netfid,
 			 *		       extAttrBits,
 			 *		       &ExtAttrMask);
-			 * if (rc != EOPNOTSUPP)
+			 * if (rc != -EOPNOTSUPP)
 			 *	break;
 			 */