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authorRui Xiang <rui.xiang@huawei.com>2014-01-23 15:54:59 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2014-01-23 16:36:59 -0800
commitda29b7543957c6e967066f1ee18fab2feb0eeeb3 (patch)
tree677ef5f4b80cc040d69a062aafaa573ab4b85304 /fs/autofs4/inode.c
parentautofs4: translate pids to the right namespace for the daemon (diff)
downloadlinux-dev-da29b7543957c6e967066f1ee18fab2feb0eeeb3.tar.xz
linux-dev-da29b7543957c6e967066f1ee18fab2feb0eeeb3.zip
autofs: fix the return value of autofs4_fill_super
While kzallocing sbi/ino fails, it should return -ENOMEM. And it should return the err value from autofs_prepare_pipe. Signed-off-by: Rui Xiang <rui.xiang@huawei.com> Signed-off-by: Ian Kent <raven@themaw.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/autofs4/inode.c')
-rw-r--r--fs/autofs4/inode.c13
1 files changed, 8 insertions, 5 deletions
diff --git a/fs/autofs4/inode.c b/fs/autofs4/inode.c
index a3de082db620..d7bd395ab586 100644
--- a/fs/autofs4/inode.c
+++ b/fs/autofs4/inode.c
@@ -212,10 +212,11 @@ int autofs4_fill_super(struct super_block *s, void *data, int silent)
struct autofs_info *ino;
int pgrp;
bool pgrp_set = false;
+ int ret = -EINVAL;
sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
if (!sbi)
- goto fail_unlock;
+ return -ENOMEM;
DPRINTK("starting up, sbi = %p",sbi);
s->s_fs_info = sbi;
@@ -249,8 +250,10 @@ int autofs4_fill_super(struct super_block *s, void *data, int silent)
* Get the root inode and dentry, but defer checking for errors.
*/
ino = autofs4_new_ino(sbi);
- if (!ino)
+ if (!ino) {
+ ret = -ENOMEM;
goto fail_free;
+ }
root_inode = autofs4_get_inode(s, S_IFDIR | 0755);
root = d_make_root(root_inode);
if (!root)
@@ -308,7 +311,8 @@ int autofs4_fill_super(struct super_block *s, void *data, int silent)
printk("autofs: could not open pipe file descriptor\n");
goto fail_dput;
}
- if (autofs_prepare_pipe(pipe) < 0)
+ ret = autofs_prepare_pipe(pipe);
+ if (ret < 0)
goto fail_fput;
sbi->pipe = pipe;
sbi->pipefd = pipefd;
@@ -336,8 +340,7 @@ fail_free:
put_pid(sbi->oz_pgrp);
kfree(sbi);
s->s_fs_info = NULL;
-fail_unlock:
- return -EINVAL;
+ return ret;
}
struct inode *autofs4_get_inode(struct super_block *sb, umode_t mode)