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authorTejun Heo <htejun@gmail.com>2007-08-02 21:38:03 +0900
committerGreg Kroah-Hartman <gregkh@suse.de>2007-10-12 14:51:04 -0700
commit23dc279950a056c33a14d09cf759f5173d41abd9 (patch)
tree852f8cc24c24988717dbae8f98da999ff27755fa /fs/sysfs/symlink.c
parent41fc1c27452e041a18e5141b8203ee0ea72bc483 (diff)
downloadop-kernel-dev-23dc279950a056c33a14d09cf759f5173d41abd9.zip
op-kernel-dev-23dc279950a056c33a14d09cf759f5173d41abd9.tar.gz
sysfs: make sysfs_add_one() automatically check for duplicate entry
Make sysfs_add_one() check for duplicate entry and return -EEXIST if such entry exists. This simplifies node addition code a bit. This patch doesn't introduce any noticeable behavior change. Signed-off-by: Tejun Heo <htejun@gmail.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs/sysfs/symlink.c')
-rw-r--r--fs/sysfs/symlink.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c
index c129f30..a6b13f1 100644
--- a/fs/sysfs/symlink.c
+++ b/fs/sysfs/symlink.c
@@ -91,14 +91,11 @@ int sysfs_create_link(struct kobject * kobj, struct kobject * target, const char
target_sd = NULL; /* reference is now owned by the symlink */
sysfs_addrm_start(&acxt, parent_sd);
+ error = sysfs_add_one(&acxt, sd);
+ sysfs_addrm_finish(&acxt);
- if (!sysfs_find_dirent(parent_sd, name))
- sysfs_add_one(&acxt, sd);
-
- if (!sysfs_addrm_finish(&acxt)) {
- error = -EEXIST;
+ if (error)
goto out_put;
- }
return 0;
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