linux-kernel - [PATCH] ext4/extents.c: quiet sparse noise about plain integer as NULL pointer

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Message-ID: <201109231532.44363.hartleys@visionengravers.com>
Date:	Fri, 23 Sep 2011 15:32:44 -0700
From:	H Hartley Sweeten <hartleys@...ionengravers.com>
To:	Linux Kernel <linux-kernel@...r.kernel.org>
CC:	<linux-ext4@...r.kernel.org>, <tytso@....edu>,
	<adilger.kernel@...ger.ca>
Subject: [PATCH] ext4/extents.c: quiet sparse noise about plain integer as NULL pointer

The third parameter to ext4_free_blocks is a struct buffer_head *.  This
parameter should be NULL not 0.

This quiets the sparse noise:

warning: Using plain integer as NULL pointer

Signed-off-by: H Hartley Sweeten <hsweeten@...ionengravers.com>
Cc: "Theodore Ts'o" <tytso@....edu>
Cc: Andreas Dilger <adilger.kernel@...ger.ca>

---

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 57cf568..97e8d2b 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -2238,7 +2238,7 @@ static int ext4_remove_blocks(handle_t *handle, struct inode *inode,
 		start = ext4_ext_pblock(ex);
 
 		ext_debug("free first %u blocks starting %llu\n", num, start);
-		ext4_free_blocks(handle, inode, 0, start, num, flags);
+		ext4_free_blocks(handle, inode, NULL, start, num, flags);
 
 	} else {
 		printk(KERN_INFO "strange request: removal(2) "
--
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