ovl: fix ptr_ret.cocci warnings

fs/overlayfs/export.c:459:10-16: WARNING: PTR_ERR_OR_ZERO can be used

 Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR

Generated by: scripts/coccinelle/api/ptr_ret.cocci

Fixes: 4b91c30a5a ("ovl: lookup connected ancestor of dir in inode cache")
CC: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
This commit is contained in:
Fengguang Wu 2018-02-06 00:25:16 +08:00 committed by Miklos Szeredi
parent 7168179fcf
commit b5095f24e7

View File

@ -620,7 +620,7 @@ static struct dentry *ovl_lookup_real(struct super_block *sb,
if (err == -ECHILD) {
this = ovl_lookup_real_ancestor(sb, real,
layer);
err = IS_ERR(this) ? PTR_ERR(this) : 0;
err = PTR_ERR_OR_ZERO(this);
}
if (!err) {
dput(connected);