*: use NULL for null pointers

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

11 files changed, 13 insertions, 13 deletions

diff --git a/e2fsprogs/old_e2fsprogs/ext2fs/alloc.c b/e2fsprogs/old_e2fsprogs/ext2fs/alloc.c
index 590f23a..5021d72 100644
--- a/e2fsprogs/old_e2fsprogs/ext2fs/alloc.c
+++ b/e2fsprogs/old_e2fsprogs/ext2fs/alloc.c
@@ -109,7 +109,7 @@ errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
 {
 	errcode_t	retval;
 	blk_t		block;
-	char		*buf = 0;
+	char		*buf = NULL;
 
 	if (!block_buf) {
 		retval = ext2fs_get_mem(fs->blocksize, &buf);
diff --git a/e2fsprogs/old_e2fsprogs/ext2fs/bmap.c b/e2fsprogs/old_e2fsprogs/ext2fs/bmap.c
index b22fe3d..b2d0279 100644
--- a/e2fsprogs/old_e2fsprogs/ext2fs/bmap.c
+++ b/e2fsprogs/old_e2fsprogs/ext2fs/bmap.c
@@ -136,7 +136,7 @@ errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino, struct ext2_inode *inode,
 	struct ext2_inode inode_buf;
 	blk_t addr_per_block;
 	blk_t	b;
-	char	*buf = 0;
+	char	*buf = NULL;
 	errcode_t	retval = 0;
 	int		blocks_alloc = 0, inode_dirty = 0;
 
diff --git a/e2fsprogs/old_e2fsprogs/ext2fs/closefs.c b/e2fsprogs/old_e2fsprogs/ext2fs/closefs.c
index 008d5f3..7ba7f22 100644
--- a/e2fsprogs/old_e2fsprogs/ext2fs/closefs.c
+++ b/e2fsprogs/old_e2fsprogs/ext2fs/closefs.c
@@ -206,8 +206,8 @@ errcode_t ext2fs_flush(ext2_filsys fs)
 	blk_t		group_block;
 	errcode_t	retval;
 	unsigned long	fs_state;
-	struct ext2_super_block *super_shadow = 0;
-	struct ext2_group_desc *group_shadow = 0;
+	struct ext2_super_block *super_shadow = NULL;
+	struct ext2_group_desc *group_shadow = NULL;
 	char	*group_ptr;
 	int	old_desc_blocks;
 #if BB_BIG_ENDIAN
diff --git a/e2fsprogs/old_e2fsprogs/ext2fs/dirblock.c b/e2fsprogs/old_e2fsprogs/ext2fs/dirblock.c
index 5d3f6a1..f651338 100644
--- a/e2fsprogs/old_e2fsprogs/ext2fs/dirblock.c
+++ b/e2fsprogs/old_e2fsprogs/ext2fs/dirblock.c
@@ -80,7 +80,7 @@ errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
 	int		do_swap = 0;
 	errcode_t	retval;
 	char		*p, *end;
-	char		*buf = 0;
+	char		*buf = NULL;
 	struct ext2_dir_entry *dirent;
 
 	if ((fs->flags & EXT2_FLAG_SWAP_BYTES) ||
diff --git a/e2fsprogs/old_e2fsprogs/ext2fs/ext_attr.c b/e2fsprogs/old_e2fsprogs/ext2fs/ext_attr.c
index 7ee41f2..a2ba12d 100644
--- a/e2fsprogs/old_e2fsprogs/ext2fs/ext_attr.c
+++ b/e2fsprogs/old_e2fsprogs/ext2fs/ext_attr.c
@@ -68,7 +68,7 @@ errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
 {
 	errcode_t	retval;
 	struct ext2_ext_attr_header *header;
-	char	*buf = 0;
+	char	*buf = NULL;
 
 	if ((blk >= fs->super->s_blocks_count) ||
 	    (blk < fs->super->s_first_data_block))
diff --git a/e2fsprogs/old_e2fsprogs/ext2fs/finddev.c b/e2fsprogs/old_e2fsprogs/ext2fs/finddev.c
index 5e2cce9..e9e83fd 100644
--- a/e2fsprogs/old_e2fsprogs/ext2fs/finddev.c
+++ b/e2fsprogs/old_e2fsprogs/ext2fs/finddev.c
@@ -115,9 +115,9 @@ success:
  */
 char *ext2fs_find_block_device(dev_t device)
 {
-	struct dir_list *list = 0, *new_list = 0;
+	struct dir_list *list = NULL, *new_list = NULL;
 	struct dir_list *current;
-	char	*ret_path = 0;
+	char	*ret_path = NULL;
 
 	/*
 	 * Add the starting directories to search...
diff --git a/e2fsprogs/old_e2fsprogs/ext2fs/imager.c b/e2fsprogs/old_e2fsprogs/ext2fs/imager.c
index e82321e..0f9cfcf 100644
--- a/e2fsprogs/old_e2fsprogs/ext2fs/imager.c
+++ b/e2fsprogs/old_e2fsprogs/ext2fs/imager.c
@@ -333,7 +333,7 @@ errout:
  */
 errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags)
 {
-	char		*ptr, *buf = 0;
+	char		*ptr, *buf = NULL;
 	int		size;
 	ssize_t		actual;
 	errcode_t	retval;
diff --git a/e2fsprogs/old_e2fsprogs/ext2fs/mkdir.c b/e2fsprogs/old_e2fsprogs/ext2fs/mkdir.c
index b63c5d7..93f47b0 100644
--- a/e2fsprogs/old_e2fsprogs/ext2fs/mkdir.c
+++ b/e2fsprogs/old_e2fsprogs/ext2fs/mkdir.c
@@ -39,7 +39,7 @@ errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum,
 	ext2_ino_t		ino = inum;
 	ext2_ino_t		scratch_ino;
 	blk_t			blk;
-	char			*block = 0;
+	char			*block = NULL;
 
 	EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
 
diff --git a/e2fsprogs/old_e2fsprogs/ext2fs/mkjournal.c b/e2fsprogs/old_e2fsprogs/ext2fs/mkjournal.c
index af47aee..db1c8bf 100644
--- a/e2fsprogs/old_e2fsprogs/ext2fs/mkjournal.c
+++ b/e2fsprogs/old_e2fsprogs/ext2fs/mkjournal.c
@@ -95,7 +95,7 @@ static errcode_t write_journal_file(ext2_filsys fs, char *filename,
 				    blk_t size, int flags)
 {
 	errcode_t	retval;
-	char		*buf = 0;
+	char		*buf = NULL;
 	int		fd, ret_size;
 	blk_t		i;
 
diff --git a/e2fsprogs/old_e2fsprogs/ext2fs/namei.c b/e2fsprogs/old_e2fsprogs/ext2fs/namei.c
index 4d4e378..14d48fb 100644
--- a/e2fsprogs/old_e2fsprogs/ext2fs/namei.c
+++ b/e2fsprogs/old_e2fsprogs/ext2fs/namei.c
@@ -30,7 +30,7 @@ static errcode_t follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t dir,
 			     char *buf, ext2_ino_t *res_inode)
 {
 	char *pathname;
-	char *buffer = 0;
+	char *buffer = NULL;
 	errcode_t retval;
 	struct ext2_inode ei;
 
diff --git a/e2fsprogs/old_e2fsprogs/ext2fs/rw_bitmaps.c b/e2fsprogs/old_e2fsprogs/ext2fs/rw_bitmaps.c
index a5782db..0ae0a82 100644
--- a/e2fsprogs/old_e2fsprogs/ext2fs/rw_bitmaps.c
+++ b/e2fsprogs/old_e2fsprogs/ext2fs/rw_bitmaps.c
@@ -149,7 +149,7 @@ errcode_t ext2fs_write_block_bitmap (ext2_filsys fs)
 static errcode_t read_bitmaps(ext2_filsys fs, int do_inode, int do_block)
 {
 	dgrp_t i;
-	char *block_bitmap = 0, *inode_bitmap = 0;
+	char *block_bitmap = NULL, *inode_bitmap = NULL;
 	char *buf;
 	errcode_t retval;
 	int block_nbytes = (int) EXT2_BLOCKS_PER_GROUP(fs->super) / 8;