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Date:   Sat, 23 Mar 2019 03:40:21 +0530
From:   Hariprasad Kelam <hariprasad.kelam@gmail.com>
To:     Jaegeuk Kim <jaegeuk@kernel.org>, Chao Yu <yuchao0@huawei.com>,
        Jan Kara <jack@suse.cz>, Amir Goldstein <amir73il@gmail.com>,
        Richard Weinberger <richard@nod.at>,
        Artem Bityutskiy <dedekind1@gmail.com>,
        Adrian Hunter <adrian.hunter@intel.com>,
        linux-f2fs-devel@lists.sourceforge.net,
        linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
        linux-mtd@lists.infradead.org
Subject: [PATCH] fs: fix warning about Using plain integer as NULL pointer
Message-ID: <20190322221021.GA24814@hari-Inspiron-1545>
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Sparse warning below:

sudo make C=2 CF=-D__CHECK_ENDIAN__ M=fs

CHECK   fs/f2fs/data.c
fs/f2fs/data.c:426:47: warning: Using plain integer as NULL pointer
CHECK   fs/notify/fdinfo.c
fs/notify/fdinfo.c:53:87: warning: Using plain integer as NULL pointer
 CHECK   fs/ubifs/xattr.c
fs/ubifs/xattr.c:615:58: warning: Using plain integer as NULL pointer

Signed-off-by: Hariprasad Kelam <hariprasad.kelam@gmail.com>
---
 fs/f2fs/data.c     | 2 +-
 fs/notify/fdinfo.c | 2 +-
 fs/ubifs/xattr.c   | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 97279441..15a2381 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -423,7 +423,7 @@ static void __submit_merged_write_cond(struct f2fs_sb_info *sbi,
 
 void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type)
 {
-	__submit_merged_write_cond(sbi, NULL, 0, 0, type, true);
+	__submit_merged_write_cond(sbi, NULL, NULL, 0, type, true);
 }
 
 void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi,
diff --git a/fs/notify/fdinfo.c b/fs/notify/fdinfo.c
index 1e2bfd2..ef83f40 100644
--- a/fs/notify/fdinfo.c
+++ b/fs/notify/fdinfo.c
@@ -50,7 +50,7 @@ static void show_mark_fhandle(struct seq_file *m, struct inode *inode)
 	f.handle.handle_bytes = sizeof(f.pad);
 	size = f.handle.handle_bytes >> 2;
 
-	ret = exportfs_encode_inode_fh(inode, (struct fid *)f.handle.f_handle, &size, 0);
+	ret = exportfs_encode_inode_fh(inode, (struct fid *)f.handle.f_handle, &size, NULL);
 	if ((ret == FILEID_INVALID) || (ret < 0)) {
 		WARN_ONCE(1, "Can't encode file handler for inotify: %d\n", ret);
 		return;
diff --git a/fs/ubifs/xattr.c b/fs/ubifs/xattr.c
index f5ad1ed..066a566 100644
--- a/fs/ubifs/xattr.c
+++ b/fs/ubifs/xattr.c
@@ -612,7 +612,7 @@ int ubifs_init_security(struct inode *dentry, struct inode *inode,
 	int err;
 
 	err = security_inode_init_security(inode, dentry, qstr,
-					   &init_xattrs, 0);
+					   &init_xattrs, NULL);
 	if (err) {
 		struct ubifs_info *c = dentry->i_sb->s_fs_info;
 		ubifs_err(c, "cannot initialize security for inode %lu, error %d",
-- 
2.7.4