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*: use NULL for null pointers

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2010-03-05 14:10:54 +01:00
parent 44fbfa78ca
commit 4b1100edd8
19 changed files with 36 additions and 36 deletions
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2
e2fsprogs/old_e2fsprogs/blkid/devname.c
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@ -258,7 +258,7 @@ int blkid_probe_all(blkid_cache cache)
{ {
FILE *proc; FILE *proc;
char line[1024]; char line[1024];
char ptname0[128], ptname1[128], *ptname = 0; char ptname0[128], ptname1[128], *ptname = NULL;
char *ptnames[2]; char *ptnames[2];
dev_t devs[2]; dev_t devs[2];
int ma, mi; int ma, mi;

16
e2fsprogs/old_e2fsprogs/blkid/probe.c
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@ -82,7 +82,7 @@ static void set_uuid(blkid_dev dev, uuid_t uuid)
static void get_ext2_info(blkid_dev dev, unsigned char *buf) static void get_ext2_info(blkid_dev dev, unsigned char *buf)
{ {
struct ext2_super_block *es = (struct ext2_super_block *) buf; struct ext2_super_block *es = (struct ext2_super_block *) buf;
const char *label = 0; const char *label = NULL;
DBG(DEBUG_PROBE, printf("ext2_sb.compat = %08X:%08X:%08X\n", DBG(DEBUG_PROBE, printf("ext2_sb.compat = %08X:%08X:%08X\n",
blkid_le32(es->s_feature_compat), blkid_le32(es->s_feature_compat),
@ -168,7 +168,7 @@ static int probe_vfat(int fd __BLKID_ATTR((unused)),
{ {
struct vfat_super_block *vs; struct vfat_super_block *vs;
char serno[10]; char serno[10];
const char *label = 0; const char *label = NULL;
int label_len = 0; int label_len = 0;
vs = (struct vfat_super_block *)buf; vs = (struct vfat_super_block *)buf;
@ -201,7 +201,7 @@ static int probe_msdos(int fd __BLKID_ATTR((unused)),
{ {
struct msdos_super_block *ms = (struct msdos_super_block *) buf; struct msdos_super_block *ms = (struct msdos_super_block *) buf;
char serno[10]; char serno[10];
const char *label = 0; const char *label = NULL;
int label_len = 0; int label_len = 0;
if (strncmp(ms->ms_label, "NO NAME", 7)) { if (strncmp(ms->ms_label, "NO NAME", 7)) {
@ -232,7 +232,7 @@ static int probe_xfs(int fd __BLKID_ATTR((unused)),
unsigned char *buf) unsigned char *buf)
{ {
struct xfs_super_block *xs; struct xfs_super_block *xs;
const char *label = 0; const char *label = NULL;
xs = (struct xfs_super_block *)buf; xs = (struct xfs_super_block *)buf;
@ -250,7 +250,7 @@ static int probe_reiserfs(int fd __BLKID_ATTR((unused)),
{ {
struct reiserfs_super_block *rs = (struct reiserfs_super_block *) buf; struct reiserfs_super_block *rs = (struct reiserfs_super_block *) buf;
unsigned int blocksize; unsigned int blocksize;
const char *label = 0; const char *label = NULL;
blocksize = blkid_le16(rs->rs_blocksize); blocksize = blkid_le16(rs->rs_blocksize);
@ -277,7 +277,7 @@ static int probe_jfs(int fd __BLKID_ATTR((unused)),
unsigned char *buf) unsigned char *buf)
{ {
struct jfs_super_block *js; struct jfs_super_block *js;
const char *label = 0; const char *label = NULL;
js = (struct jfs_super_block *)buf; js = (struct jfs_super_block *)buf;
@ -295,7 +295,7 @@ static int probe_romfs(int fd __BLKID_ATTR((unused)),
unsigned char *buf) unsigned char *buf)
{ {
struct romfs_super_block *ros; struct romfs_super_block *ros;
const char *label = 0; const char *label = NULL;
ros = (struct romfs_super_block *)buf; ros = (struct romfs_super_block *)buf;
@ -312,7 +312,7 @@ static int probe_cramfs(int fd __BLKID_ATTR((unused)),
unsigned char *buf) unsigned char *buf)
{ {
struct cramfs_super_block *csb; struct cramfs_super_block *csb;
const char *label = 0; const char *label = NULL;
csb = (struct cramfs_super_block *)buf; csb = (struct cramfs_super_block *)buf;

2
e2fsprogs/old_e2fsprogs/blkid/resolve.c
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@ -65,7 +65,7 @@ char *blkid_get_devname(blkid_cache cache, const char *token,
{ {
blkid_dev dev; blkid_dev dev;
blkid_cache c = cache; blkid_cache c = cache;
char *t = 0, *v = 0; char *t = NULL, *v = NULL;
char *ret = NULL; char *ret = NULL;
if (!token) if (!token)

2
e2fsprogs/old_e2fsprogs/blkid/tag.c
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@ -112,7 +112,7 @@ int blkid_set_tag(blkid_dev dev, const char *name,
const char *value, const int vlength) const char *value, const int vlength)
{ {
blkid_tag t = 0, head = 0; blkid_tag t = 0, head = 0;
char *val = 0; char *val = NULL;
if (!dev || !name) if (!dev || !name)
return -BLKID_ERR_PARAM; return -BLKID_ERR_PARAM;

16
e2fsprogs/old_e2fsprogs/e2fsck.c
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@ -1539,7 +1539,7 @@ static errcode_t e2fsck_get_journal(e2fsck_t ctx, journal_t **ret_journal)
struct buffer_head *bh; struct buffer_head *bh;
struct inode *j_inode = NULL; struct inode *j_inode = NULL;
struct kdev_s *dev_fs = NULL, *dev_journal; struct kdev_s *dev_fs = NULL, *dev_journal;
const char *journal_name = 0; const char *journal_name = NULL;
journal_t *journal = NULL; journal_t *journal = NULL;
errcode_t retval = 0; errcode_t retval = 0;
io_manager io_ptr = 0; io_manager io_ptr = 0;
@ -6009,7 +6009,7 @@ static int check_dir_block(ext2_filsys fs,
struct dir_info *subdir, *dir; struct dir_info *subdir, *dir;
struct dx_dir_info *dx_dir; struct dx_dir_info *dx_dir;
#ifdef ENABLE_HTREE #ifdef ENABLE_HTREE
struct dx_dirblock_info *dx_db = 0; struct dx_dirblock_info *dx_db = NULL;
#endif /* ENABLE_HTREE */ #endif /* ENABLE_HTREE */
struct ext2_dir_entry *dirent, *prev; struct ext2_dir_entry *dirent, *prev;
ext2_dirhash_t hash; ext2_dirhash_t hash;
@ -7524,7 +7524,7 @@ static void e2fsck_pass4(e2fsck_t ctx)
struct ext2_inode inode; struct ext2_inode inode;
struct problem_context pctx; struct problem_context pctx;
__u16 link_count, link_counted; __u16 link_count, link_counted;
char *buf = 0; char *buf = NULL;
int group, maxgroup; int group, maxgroup;
/* Pass 4 */ /* Pass 4 */
@ -9670,7 +9670,7 @@ int fix_problem(e2fsck_t ctx, problem_t code, struct problem_context *pctx)
{ {
ext2_filsys fs = ctx->fs; ext2_filsys fs = ctx->fs;
const struct e2fsck_problem *ptr; const struct e2fsck_problem *ptr;
struct latch_descr *ldesc = 0; struct latch_descr *ldesc = NULL;
const char *message; const char *message;
int def_yn, answer, ans; int def_yn, answer, ans;
int print_answer = 0; int print_answer = 0;
@ -10669,7 +10669,7 @@ static errcode_t calculate_tree(ext2_filsys fs,
ext2_ino_t parent) ext2_ino_t parent)
{ {
struct ext2_dx_root_info *root_info; struct ext2_dx_root_info *root_info;
struct ext2_dx_entry *root, *dx_ent = 0; struct ext2_dx_entry *root, *dx_ent = NULL;
struct ext2_dx_countlimit *root_limit, *limit; struct ext2_dx_countlimit *root_limit, *limit;
errcode_t retval; errcode_t retval;
char * block_start; char * block_start;
@ -10821,7 +10821,7 @@ static errcode_t e2fsck_rehash_dir(e2fsck_t ctx, ext2_ino_t ino)
ext2_filsys fs = ctx->fs; ext2_filsys fs = ctx->fs;
errcode_t retval; errcode_t retval;
struct ext2_inode inode; struct ext2_inode inode;
char *dir_buf = 0; char *dir_buf = NULL;
struct fill_dir_struct fd; struct fill_dir_struct fd;
struct out_dir outdir; struct out_dir outdir;
@ -11559,7 +11559,7 @@ static void check_resize_inode(e2fsck_t ctx)
struct problem_context pctx; struct problem_context pctx;
int i, j, gdt_off, ind_off; int i, j, gdt_off, ind_off;
blk_t blk, pblk, expect; blk_t blk, pblk, expect;
__u32 *dind_buf = 0, *ind_buf; __u32 *dind_buf = NULL, *ind_buf;
errcode_t retval; errcode_t retval;
clear_problem_context(&pctx); clear_problem_context(&pctx);
@ -12975,7 +12975,7 @@ static errcode_t PRS(int argc, char **argv, e2fsck_t *ret_ctx)
e2fsck_t ctx; e2fsck_t ctx;
errcode_t retval; errcode_t retval;
struct sigaction sa; struct sigaction sa;
char *extended_opts = 0; char *extended_opts = NULL;
retval = e2fsck_allocate_context(&ctx); retval = e2fsck_allocate_context(&ctx);
if (retval) if (retval)

2
e2fsprogs/old_e2fsprogs/ext2fs/alloc.c
View File

@ -109,7 +109,7 @@ errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
{ {
errcode_t retval; errcode_t retval;
blk_t block; blk_t block;
char *buf = 0; char *buf = NULL;
if (!block_buf) { if (!block_buf) {
retval = ext2fs_get_mem(fs->blocksize, &buf); retval = ext2fs_get_mem(fs->blocksize, &buf);

2
e2fsprogs/old_e2fsprogs/ext2fs/bmap.c
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@ -136,7 +136,7 @@ errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino, struct ext2_inode *inode,
struct ext2_inode inode_buf; struct ext2_inode inode_buf;
blk_t addr_per_block; blk_t addr_per_block;
blk_t b; blk_t b;
char *buf = 0; char *buf = NULL;
errcode_t retval = 0; errcode_t retval = 0;
int blocks_alloc = 0, inode_dirty = 0; int blocks_alloc = 0, inode_dirty = 0;

4
e2fsprogs/old_e2fsprogs/ext2fs/closefs.c
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@ -206,8 +206,8 @@ errcode_t ext2fs_flush(ext2_filsys fs)
blk_t group_block; blk_t group_block;
errcode_t retval; errcode_t retval;
unsigned long fs_state; unsigned long fs_state;
struct ext2_super_block *super_shadow = 0; struct ext2_super_block *super_shadow = NULL;
struct ext2_group_desc *group_shadow = 0; struct ext2_group_desc *group_shadow = NULL;
char *group_ptr; char *group_ptr;
int old_desc_blocks; int old_desc_blocks;
#if BB_BIG_ENDIAN #if BB_BIG_ENDIAN

2
e2fsprogs/old_e2fsprogs/ext2fs/dirblock.c
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@ -80,7 +80,7 @@ errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
int do_swap = 0; int do_swap = 0;
errcode_t retval; errcode_t retval;
char *p, *end; char *p, *end;
char *buf = 0; char *buf = NULL;
struct ext2_dir_entry *dirent; struct ext2_dir_entry *dirent;
if ((fs->flags & EXT2_FLAG_SWAP_BYTES) || if ((fs->flags & EXT2_FLAG_SWAP_BYTES) ||

2
e2fsprogs/old_e2fsprogs/ext2fs/ext_attr.c
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@ -68,7 +68,7 @@ errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
{ {
errcode_t retval; errcode_t retval;
struct ext2_ext_attr_header *header; struct ext2_ext_attr_header *header;
char *buf = 0; char *buf = NULL;
if ((blk >= fs->super->s_blocks_count) || if ((blk >= fs->super->s_blocks_count) ||
(blk < fs->super->s_first_data_block)) (blk < fs->super->s_first_data_block))

4
e2fsprogs/old_e2fsprogs/ext2fs/finddev.c
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@ -115,9 +115,9 @@ success:
*/ */
char *ext2fs_find_block_device(dev_t device) 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; struct dir_list *current;
char *ret_path = 0; char *ret_path = NULL;
/* /*
* Add the starting directories to search... * Add the starting directories to search...

2
e2fsprogs/old_e2fsprogs/ext2fs/imager.c
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@ -333,7 +333,7 @@ errout:
*/ */
errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags) errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags)
{ {
char *ptr, *buf = 0; char *ptr, *buf = NULL;
int size; int size;
ssize_t actual; ssize_t actual;
errcode_t retval; errcode_t retval;

2
e2fsprogs/old_e2fsprogs/ext2fs/mkdir.c
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@ -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 ino = inum;
ext2_ino_t scratch_ino; ext2_ino_t scratch_ino;
blk_t blk; blk_t blk;
char *block = 0; char *block = NULL;
EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS); EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);

2
e2fsprogs/old_e2fsprogs/ext2fs/mkjournal.c
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@ -95,7 +95,7 @@ static errcode_t write_journal_file(ext2_filsys fs, char *filename,
blk_t size, int flags) blk_t size, int flags)
{ {
errcode_t retval; errcode_t retval;
char *buf = 0; char *buf = NULL;
int fd, ret_size; int fd, ret_size;
blk_t i; blk_t i;

2
e2fsprogs/old_e2fsprogs/ext2fs/namei.c
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@ -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 *buf, ext2_ino_t *res_inode)
{ {
char *pathname; char *pathname;
char *buffer = 0; char *buffer = NULL;
errcode_t retval; errcode_t retval;
struct ext2_inode ei; struct ext2_inode ei;

2
e2fsprogs/old_e2fsprogs/ext2fs/rw_bitmaps.c
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@ -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) static errcode_t read_bitmaps(ext2_filsys fs, int do_inode, int do_block)
{ {
dgrp_t i; dgrp_t i;
char *block_bitmap = 0, *inode_bitmap = 0; char *block_bitmap = NULL, *inode_bitmap = NULL;
char *buf; char *buf;
errcode_t retval; errcode_t retval;
int block_nbytes = (int) EXT2_BLOCKS_PER_GROUP(fs->super) / 8; int block_nbytes = (int) EXT2_BLOCKS_PER_GROUP(fs->super) / 8;

2
e2fsprogs/old_e2fsprogs/fsck.c
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@ -1166,7 +1166,7 @@ static void signal_cancel(int sig FSCK_ATTR((unused)))
static void PRS(int argc, char **argv) static void PRS(int argc, char **argv)
{ {
int i, j; int i, j;
char *arg, *dev, *tmp = 0; char *arg, *dev, *tmp = NULL;
char options[128]; char options[128];
int opt = 0; int opt = 0;
int opts_for_fsck = 0; int opts_for_fsck = 0;

4
e2fsprogs/old_e2fsprogs/mke2fs.c
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@ -799,8 +799,8 @@ static int PRS(int argc, char **argv)
int show_version_only = 0; int show_version_only = 0;
ext2_ino_t num_inodes = 0; ext2_ino_t num_inodes = 0;
errcode_t retval; errcode_t retval;
char * extended_opts = 0; char * extended_opts = NULL;
const char * fs_type = 0; const char * fs_type = NULL;
blk_t dev_size; blk_t dev_size;
long sysval; long sysval;

2
shell/ash.c
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@ -2482,7 +2482,7 @@ static void hashcd(void);
static int static int
docd(const char *dest, int flags) docd(const char *dest, int flags)
{ {
const char *dir = 0; const char *dir = NULL;
int err; int err;
TRACE(("docd(\"%s\", %d) called\n", dest, flags)); TRACE(("docd(\"%s\", %d) called\n", dest, flags));