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btrfs-progs: use NULL instead of 0 

Fix the code assigning 0 to pointer instead of NULL.

Signed-off-by: Byongho Lee <bhlee.kernel@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.com>
master
Byongho Lee 2016-01-04 10:01:30 +09:00 committed by David Sterba
parent dea6b51bae
commit 83d0a1727b
4 changed files with 13 additions and 11 deletions
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12
cmds-fi-usage.c
View File

@ -47,7 +47,7 @@ static int add_info_to_list(struct chunk_info **info_ptr,
for (j = 0 ; j < num_stripes ; j++) {
int i;
struct chunk_info *p = 0;
struct chunk_info *p = NULL;
struct btrfs_stripe *stripe;
u64 devid;
@ -182,7 +182,7 @@ static int load_chunk_info(int fd, struct chunk_info **info_ptr, int *info_count
ret = add_info_to_list(info_ptr, info_count, item);
if (ret) {
*info_ptr = 0;
*info_ptr = NULL;
return 1;
}
@ -228,7 +228,7 @@ static int cmp_btrfs_ioctl_space_info(const void *a, const void *b)
*/
static struct btrfs_ioctl_space_args *load_space_info(int fd, char *path)
{
struct btrfs_ioctl_space_args *sargs = 0, *sargs_orig = 0;
struct btrfs_ioctl_space_args *sargs = NULL, *sargs_orig = NULL;
int e, ret, count;
sargs_orig = sargs = calloc(1, sizeof(struct btrfs_ioctl_space_args));
@ -312,7 +312,7 @@ static int print_filesystem_usage_overall(int fd, struct chunk_info *chunkinfo,
int chunkcount, struct device_info *devinfo, int devcount,
char *path, unsigned unit_mode)
{
struct btrfs_ioctl_space_args *sargs = 0;
struct btrfs_ioctl_space_args *sargs = NULL;
int i;
int ret = 0;
int width = 10; /* default 10 for human units */
@ -510,7 +510,7 @@ static int load_device_info(int fd, struct device_info **device_info_ptr,
struct device_info *info;
*device_info_count = 0;
*device_info_ptr = 0;
*device_info_ptr = NULL;
ret = ioctl(fd, BTRFS_IOC_FS_INFO, &fi_args);
if (ret < 0) {
@ -620,7 +620,7 @@ static void _cmd_filesystem_usage_tabular(unsigned unit_mode,
{
int i;
u64 total_unused = 0;
struct string_table *matrix = 0;
struct string_table *matrix = NULL;
int ncols, nrows;
int col;
int unallocated_col;

2
props.c
View File

@ -194,5 +194,5 @@ const struct prop_handler prop_handlers[] = {
prop_object_dev | prop_object_root, prop_label},
{"compression", "Set/get compression for a file or directory", 0,
prop_object_inode, prop_compression},
{0, 0, 0, 0, 0}
{NULL, NULL, 0, 0, NULL}
};

6
qgroup.c
View File

@ -1117,7 +1117,8 @@ static int __qgroups_search(int fd, struct qgroup_lookup *qgroup_lookup)
btrfs_stack_qgroup_info_exclusive_compressed
(info);
add_qgroup(qgroup_lookup, sh->offset, a1, a2,
a3, a4, a5, 0, 0, 0, 0, 0, 0, 0);
a3, a4, a5, 0, 0, 0, 0, 0,
NULL, NULL);
} else if (sh->type == BTRFS_QGROUP_LIMIT_KEY) {
limit = (struct btrfs_qgroup_limit_item *)
(args.buf + off);
@ -1132,7 +1133,8 @@ static int __qgroups_search(int fd, struct qgroup_lookup *qgroup_lookup)
a5 = btrfs_stack_qgroup_limit_rsv_exclusive
(limit);
add_qgroup(qgroup_lookup, sh->offset, 0, 0,
0, 0, 0, a1, a2, a3, a4, a5, 0, 0);
0, 0, 0, a1, a2, a3, a4, a5,
NULL, NULL);
} else if (sh->type == BTRFS_QGROUP_RELATION_KEY) {
if (sh->offset < sh->objectid)
goto skip;

4
utils.c
View File

@ -154,7 +154,7 @@ int test_uuid_unique(char *fs_uuid)
blkid_dev dev = NULL;
blkid_cache cache = NULL;
if (blkid_get_cache(&cache, 0) < 0) {
if (blkid_get_cache(&cache, NULL) < 0) {
printf("ERROR: lblkid cache get failed\n");
return 1;
}
@ -2601,7 +2601,7 @@ int btrfs_scan_lblkid(void)
if (btrfs_scan_done)
return 0;
if (blkid_get_cache(&cache, 0) < 0) {
if (blkid_get_cache(&cache, NULL) < 0) {
printf("ERROR: lblkid cache get failed\n");
return 1;
}