fix setattr error handling in sysfs, configfs

sysfs and configfs setattr functions have error cases after the generic inode's
attributes have been changed. Fix consistency by changing the generic inode
attributes only when it is guaranteed to succeed.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Acked-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 4 insertions, 2 deletions

diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c
index bde1a4c3679a..0835a3b70e03 100644
--- a/fs/sysfs/inode.c
+++ b/fs/sysfs/inode.c
@@ -117,11 +117,13 @@ int sysfs_setattr(struct dentry *dentry, struct iattr *iattr)
         if (error)
                 goto out;
 
+        error = sysfs_sd_setattr(sd, iattr);
+        if (error)
+                goto out;
+
         /* this ignores size changes */
         generic_setattr(inode, iattr);
 
-        error = sysfs_sd_setattr(sd, iattr);
-
 out:
         mutex_unlock(&sysfs_mutex);
         return error;