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authorMiklos Szeredi <mszeredi@redhat.com>2020-11-11 19:22:32 +0300
committerMiklos Szeredi <mszeredi@redhat.com>2020-11-11 19:22:32 +0300
commit833c5a42e28beeefa1f9bd476a63fe8050c1e8ca (patch)
tree3ec48a81bbc4557abcd7a1c7dcc813b56a806590 /fs/fuse
parent6a68d1e1514d77d05898780aea4e5ac587616e93 (diff)
downloadlinux-833c5a42e28beeefa1f9bd476a63fe8050c1e8ca.tar.xz
virtiofs: clean up error handling in virtio_fs_get_tree()
Avoid duplicating error cleanup. Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'fs/fuse')
-rw-r--r--fs/fuse/virtio_fs.c25
1 files changed, 12 insertions, 13 deletions
diff --git a/fs/fuse/virtio_fs.c b/fs/fuse/virtio_fs.c
index 62d89b9c30db..8868ac31a3c0 100644
--- a/fs/fuse/virtio_fs.c
+++ b/fs/fuse/virtio_fs.c
@@ -1420,22 +1420,14 @@ static int virtio_fs_get_tree(struct fs_context *fsc)
return -EINVAL;
}
+ err = -ENOMEM;
fc = kzalloc(sizeof(struct fuse_conn), GFP_KERNEL);
- if (!fc) {
- mutex_lock(&virtio_fs_mutex);
- virtio_fs_put(fs);
- mutex_unlock(&virtio_fs_mutex);
- return -ENOMEM;
- }
+ if (!fc)
+ goto out_err;
fm = kzalloc(sizeof(struct fuse_mount), GFP_KERNEL);
- if (!fm) {
- mutex_lock(&virtio_fs_mutex);
- virtio_fs_put(fs);
- mutex_unlock(&virtio_fs_mutex);
- kfree(fc);
- return -ENOMEM;
- }
+ if (!fm)
+ goto out_err;
fuse_conn_init(fc, fm, get_user_ns(current_user_ns()),
&virtio_fs_fiq_ops, fs);
@@ -1468,6 +1460,13 @@ static int virtio_fs_get_tree(struct fs_context *fsc)
WARN_ON(fsc->root);
fsc->root = dget(sb->s_root);
return 0;
+
+out_err:
+ kfree(fc);
+ mutex_lock(&virtio_fs_mutex);
+ virtio_fs_put(fs);
+ mutex_unlock(&virtio_fs_mutex);
+ return err;
}
static const struct fs_context_operations virtio_fs_context_ops = {