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authorTejun Heo <htejun@gmail.com>2007-07-18 16:38:11 +0900
committerGreg Kroah-Hartman <gregkh@suse.de>2007-07-18 15:49:50 -0700
commit967e35dcc9ac194b4a6fad69a5a51f93d69bb0d1 (patch)
tree218c6fc093ec110ee6f4c5d7f0aae448e5f82173 /fs/sysfs
parenta1da4dfe35bc36c3bc9716d995c85b7983c38a76 (diff)
downloadlinux-967e35dcc9ac194b4a6fad69a5a51f93d69bb0d1.tar.bz2
sysfs: cosmetic clean up on node creation failure paths
Node addition failure is detected by testing return value of sysfs_addfm_finish() which returns the number of added and removed nodes. As the function is called as the last step of addition right on top of error handling block, the if blocks looked like the following. if (sysfs_addrm_finish(&acxt)) success handling, usually return; /* fall through to error handling */ This is the opposite of usual convention in sysfs and makes the code difficult to understand. This patch inverts the test and makes those blocks look more like others. Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: Gabriel C <nix.or.die@googlemail.com> Cc: Miles Lane <miles.lane@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs/sysfs')
-rw-r--r--fs/sysfs/dir.c12
-rw-r--r--fs/sysfs/file.c9
-rw-r--r--fs/sysfs/symlink.c10
3 files changed, 18 insertions, 13 deletions
diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index 2e6775a836f2..048e6054c2fd 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -699,17 +699,19 @@ static int create_dir(struct kobject *kobj, struct sysfs_dirent *parent_sd,
/* link in */
sysfs_addrm_start(&acxt, parent_sd);
+
if (!sysfs_find_dirent(parent_sd, name)) {
sysfs_add_one(&acxt, sd);
sysfs_link_sibling(sd);
}
- if (sysfs_addrm_finish(&acxt)) {
- *p_sd = sd;
- return 0;
+
+ if (!sysfs_addrm_finish(&acxt)) {
+ sysfs_put(sd);
+ return -EEXIST;
}
- sysfs_put(sd);
- return -EEXIST;
+ *p_sd = sd;
+ return 0;
}
int sysfs_create_subdir(struct kobject *kobj, const char *name,
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index cc497994b2a8..3e1cc062a740 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -410,11 +410,12 @@ int sysfs_add_file(struct sysfs_dirent *dir_sd, const struct attribute *attr,
sysfs_link_sibling(sd);
}
- if (sysfs_addrm_finish(&acxt))
- return 0;
+ if (!sysfs_addrm_finish(&acxt)) {
+ sysfs_put(sd);
+ return -EEXIST;
+ }
- sysfs_put(sd);
- return -EEXIST;
+ return 0;
}
diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c
index d056e9695cd6..4ce687f0b5d0 100644
--- a/fs/sysfs/symlink.c
+++ b/fs/sysfs/symlink.c
@@ -97,11 +97,13 @@ int sysfs_create_link(struct kobject * kobj, struct kobject * target, const char
sysfs_link_sibling(sd);
}
- if (sysfs_addrm_finish(&acxt))
- return 0;
+ if (!sysfs_addrm_finish(&acxt)) {
+ error = -EEXIST;
+ goto out_put;
+ }
+
+ return 0;
- error = -EEXIST;
- /* fall through */
out_put:
sysfs_put(target_sd);
sysfs_put(sd);