Use WARN() in fs/sysfs

Use WARN() instead of a printk+WARN_ON() pair; this way the message becomes
part of the warning section for better reporting/collection.  Also, with this,
one fo the if() sections collapses entirely into the WARN().

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

3 files changed, 3 insertions, 8 deletions

diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index c1a7efb310bf..aedaeba82ae5 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -459,11 +459,8 @@ int sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd)
         int ret;
 
         ret = __sysfs_add_one(acxt, sd);
-        if (ret == -EEXIST) {
-                printk(KERN_WARNING "sysfs: duplicate filename '%s' "
+        WARN(ret == -EEXIST, KERN_WARNING "sysfs: duplicate filename '%s' "
                        "can not be created\n", sd->s_name);
-                WARN_ON(1);
-        }
         return ret;
 }
 
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 3f07893ff896..c9e4e5091da1 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -337,9 +337,8 @@ static int sysfs_open_file(struct inode *inode, struct file *file)
         if (kobj->ktype && kobj->ktype->sysfs_ops)
                 ops = kobj->ktype->sysfs_ops;
         else {
-                printk(KERN_ERR "missing sysfs attribute operations for "
+                WARN(1, KERN_ERR "missing sysfs attribute operations for "
                        "kobject: %s\n", kobject_name(kobj));
-                WARN_ON(1);
                 goto err_out;
         }
 
diff --git a/fs/sysfs/group.c b/fs/sysfs/group.c
index eeba38417b1d..fe611949a7f7 100644
--- a/fs/sysfs/group.c
+++ b/fs/sysfs/group.c
@@ -134,9 +134,8 @@ void sysfs_remove_group(struct kobject * kobj,
         if (grp->name) {
                 sd = sysfs_get_dirent(dir_sd, grp->name);
                 if (!sd) {
-                        printk(KERN_WARNING "sysfs group %p not found for "
+                        WARN(!sd, KERN_WARNING "sysfs group %p not found for "
                                 "kobject '%s'\n", grp, kobject_name(kobj));
-                        WARN_ON(!sd);
                         return;
                 }
         } else