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| author | Maneesh Soni <maneesh@in.ibm.com> | 2006-03-09 19:40:14 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-03-20 13:42:59 -0800 |
| commit | c516865cfbac0d862d4888df91793ad1e74ffd58 (patch) | |
| tree | 432024125976af3e6c87ae5b9e64b6f1cc291f70 /fs/sysfs/file.c | |
| parent | 22f98c0cd7e003b896ee52ded945081307118745 (diff) | |
| download | op-kernel-dev-c516865cfbac0d862d4888df91793ad1e74ffd58.zip op-kernel-dev-c516865cfbac0d862d4888df91793ad1e74ffd58.tar.gz | |
[PATCH] sysfs: fix problem with duplicate sysfs directories and files
The following patch checks for existing sysfs_dirent before
preparing new one while creating sysfs directories and files.
Signed-off-by: Maneesh Soni <maneesh@in.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs/sysfs/file.c')
| -rw-r--r-- | fs/sysfs/file.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c index e21f402..5e83e72 100644 --- a/fs/sysfs/file.c +++ b/fs/sysfs/file.c @@ -361,10 +361,12 @@ int sysfs_add_file(struct dentry * dir, const struct attribute * attr, int type) { struct sysfs_dirent * parent_sd = dir->d_fsdata; umode_t mode = (attr->mode & S_IALLUGO) | S_IFREG; - int error = 0; + int error = -EEXIST; mutex_lock(&dir->d_inode->i_mutex); - error = sysfs_make_dirent(parent_sd, NULL, (void *) attr, mode, type); + if (!sysfs_dirent_exist(parent_sd, attr->name)) + error = sysfs_make_dirent(parent_sd, NULL, (void *)attr, + mode, type); mutex_unlock(&dir->d_inode->i_mutex); return error; |
