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[PATCH] staging: lustre: acl: fix ifnullfree.cocci warnings

From kbuild test robot <lkp@intel.com>
Newsgroups linux.kernel
Subject [PATCH] staging: lustre: acl: fix ifnullfree.cocci warnings
Date 2015-11-09 20:50 +0100
Message-ID <qt0BY-2jS-39@gated-at.bofh.it> (permalink)
References <qt0BX-2jS-7@gated-at.bofh.it> <qsZPA-1LJ-21@gated-at.bofh.it>
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drivers/staging/lustre/lustre/llite/xattr.c:199:2-7: WARNING: NULL check before freeing functions like kfree, debugfs_remove, debugfs_remove_recursive or usb_free_urb is not needed. Maybe consider reorganizing relevant code to avoid passing NULL values.

 NULL check before some freeing functions is not needed.

 Based on checkpatch warning
 "kfree(NULL) is safe this check is probably not required"
 and kfreeaddr.cocci by Julia Lawall.

Generated by: scripts/coccinelle/free/ifnullfree.cocci

CC: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
---

 xattr.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/drivers/staging/lustre/lustre/llite/xattr.c
+++ b/drivers/staging/lustre/lustre/llite/xattr.c
@@ -192,11 +192,10 @@ int ll_setxattr_common(struct inode *ino
 			 valid, name, pv, size, 0, flags,
 			 ll_i2suppgid(inode), &req);
 #ifdef CONFIG_FS_POSIX_ACL
-	if (new_value != NULL)
 		/*
 		 * Release the posix ACL space.
 		 */
-		kfree(new_value);
+	kfree(new_value);
 	if (acl != NULL)
 		lustre_ext_acl_xattr_free(acl);
 #endif
--
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[PATCH] staging: lustre: acl: Remove lustre_posix_acl_xattr_free wrapper Shivani Bhardwaj <shivanib134@gmail.com> - 2015-11-09 20:00 +0100
  Re: [PATCH] staging: lustre: acl: Remove lustre_posix_acl_xattr_free  wrapper kbuild test robot <lkp@intel.com> - 2015-11-09 20:50 +0100
  [PATCH] staging: lustre: acl: fix ifnullfree.cocci warnings kbuild test robot <lkp@intel.com> - 2015-11-09 20:50 +0100
    Re: [PATCH] staging: lustre: acl: fix ifnullfree.cocci warnings Greg KH <gregkh@linuxfoundation.org> - 2015-11-09 21:00 +0100
      Re: [PATCH] staging: lustre: acl: fix ifnullfree.cocci warnings Julia Lawall <julia.lawall@lip6.fr> - 2015-11-09 23:10 +0100

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