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authorLouis Rilling <Louis.Rilling@kerlabs.com>2008-06-16 19:01:00 +0200
committerMark Fasheh <mfasheh@suse.com>2008-07-14 22:57:16 +0200
commit107ed40bd070df5e4a0a012042c45c40963dc574 (patch)
treed3b8c1799083c0e7d4f1af3e1b84f0a86372eaee /fs/configfs
parentconfigfs: Protect configfs_dirent s_links list mutations (diff)
downloadlinux-107ed40bd070df5e4a0a012042c45c40963dc574.tar.xz
linux-107ed40bd070df5e4a0a012042c45c40963dc574.zip
configfs: Make configfs_new_dirent() return error code instead of NULL
This patch makes configfs_new_dirent return negative error code instead of NULL, which will be useful in the next patch to differentiate ENOMEM from ENOENT. Signed-off-by: Louis Rilling <Louis.Rilling@kerlabs.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
Diffstat (limited to 'fs/configfs')
-rw-r--r--fs/configfs/dir.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c
index a08e5c2f25e8..918a332babfe 100644
--- a/fs/configfs/dir.c
+++ b/fs/configfs/dir.c
@@ -30,6 +30,7 @@
#include <linux/mount.h>
#include <linux/module.h>
#include <linux/slab.h>
+#include <linux/err.h>
#include <linux/configfs.h>
#include "configfs_internal.h"
@@ -83,7 +84,7 @@ static struct configfs_dirent *configfs_new_dirent(struct configfs_dirent * pare
sd = kmem_cache_zalloc(configfs_dir_cachep, GFP_KERNEL);
if (!sd)
- return NULL;
+ return ERR_PTR(-ENOMEM);
atomic_set(&sd->s_count, 1);
INIT_LIST_HEAD(&sd->s_links);
@@ -129,8 +130,8 @@ int configfs_make_dirent(struct configfs_dirent * parent_sd,
struct configfs_dirent * sd;
sd = configfs_new_dirent(parent_sd, element);
- if (!sd)
- return -ENOMEM;
+ if (IS_ERR(sd))
+ return PTR_ERR(sd);
sd->s_mode = mode;
sd->s_type = type;
@@ -1277,7 +1278,7 @@ static int configfs_dir_open(struct inode *inode, struct file *file)
file->private_data = configfs_new_dirent(parent_sd, NULL);
mutex_unlock(&dentry->d_inode->i_mutex);
- return file->private_data ? 0 : -ENOMEM;
+ return IS_ERR(file->private_data) ? PTR_ERR(file->private_data) : 0;
}