linux-kernel - [PATCH 7/7] sysfs: make sysfs_addrm

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Message-Id: <11858769093479-git-send-email-htejun@gmail.com>
Date:	Tue, 31 Jul 2007 19:15:09 +0900
From:	Tejun Heo <htejun@...il.com>
To:	ebiederm@...ssion.com, gregkh@...e.de,
	linux-kernel@...r.kernel.org, satyam@...radead.org,
	cornelia.huck@...ibm.com, stern@...land.harvard.edu,
	htejun@...il.com
Cc:	Tejun Heo <htejun@...il.com>
Subject: [PATCH 7/7] sysfs: make sysfs_addrm_finish() return void

With the previous sysfs_add_one() update, there is only one user of
the return value of sysfs_addrm_finish() and the user can switch to
testing @sd easily.  Make sysfs_addrm_finish() return void for cleaner
semantics as suggested by Satyam Sharma.

This patch doesn't introduce any noticeable behavior change.

Signed-off-by: Tejun Heo <htejun@...il.com>
Cc: Satyam Sharma <satyam.sharma@...il.com>
---
 fs/sysfs/dir.c   |    7 +------
 fs/sysfs/inode.c |    7 +++++--
 fs/sysfs/sysfs.h |    2 +-
 3 files changed, 7 insertions(+), 9 deletions(-)

diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index 69e57be..f9523c8 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -608,11 +608,8 @@ static void sysfs_drop_dentry(struct sysfs_dirent *sd)
  *
  *	LOCKING:
  *	All mutexes acquired by sysfs_addrm_start() are released.
- *
- *	RETURNS:
- *	Number of added/removed sysfs_dirents since sysfs_addrm_start().
  */
-int sysfs_addrm_finish(struct sysfs_addrm_cxt *acxt)
+void sysfs_addrm_finish(struct sysfs_addrm_cxt *acxt)
 {
 	/* release resources acquired by sysfs_addrm_start() */
 	mutex_unlock(&sysfs_mutex);
@@ -638,8 +635,6 @@ int sysfs_addrm_finish(struct sysfs_addrm_cxt *acxt)
 		sysfs_deactivate(sd);
 		sysfs_put(sd);
 	}
-
-	return acxt->cnt;
 }
 
 /**
diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c
index f05cda9..e74224e 100644
--- a/fs/sysfs/inode.c
+++ b/fs/sysfs/inode.c
@@ -201,7 +201,10 @@ int sysfs_hash_and_remove(struct sysfs_dirent *dir_sd, const char *name)
 	if (sd)
 		sysfs_remove_one(&acxt, sd);
 
-	if (sysfs_addrm_finish(&acxt))
+	sysfs_addrm_finish(&acxt);
+
+	if (sd)
 		return 0;
-	return -ENOENT;
+	else
+		return -ENOENT;
 }
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
index bb3f0c9..0436754 100644
--- a/fs/sysfs/sysfs.h
+++ b/fs/sysfs/sysfs.h
@@ -66,7 +66,7 @@ extern int sysfs_add_one(struct sysfs_addrm_cxt *acxt,
 			  struct sysfs_dirent *sd);
 extern void sysfs_remove_one(struct sysfs_addrm_cxt *acxt,
 			     struct sysfs_dirent *sd);
-extern int sysfs_addrm_finish(struct sysfs_addrm_cxt *acxt);
+extern void sysfs_addrm_finish(struct sysfs_addrm_cxt *acxt);
 
 extern struct inode * sysfs_get_inode(struct sysfs_dirent *sd);
 extern void sysfs_instantiate(struct dentry *dentry, struct inode *inode);
-- 
1.5.0.3


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