*: use NULL for null pointers

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

4 files changed, 11 insertions, 11 deletions

diff --git a/e2fsprogs/old_e2fsprogs/blkid/devname.c b/e2fsprogs/old_e2fsprogs/blkid/devname.c
index 348e5d42e..fad92cb31 100644
--- a/e2fsprogs/old_e2fsprogs/blkid/devname.c
+++ b/e2fsprogs/old_e2fsprogs/blkid/devname.c
@@ -258,7 +258,7 @@ int blkid_probe_all(blkid_cache cache)
 {
         FILE *proc;
         char line[1024];
-        char ptname0[128], ptname1[128], *ptname = 0;
+        char ptname0[128], ptname1[128], *ptname = NULL;
         char *ptnames[2];
         dev_t devs[2];
         int ma, mi;
diff --git a/e2fsprogs/old_e2fsprogs/blkid/probe.c b/e2fsprogs/old_e2fsprogs/blkid/probe.c
index 1f7188e6d..77bfc737d 100644
--- a/e2fsprogs/old_e2fsprogs/blkid/probe.c
+++ b/e2fsprogs/old_e2fsprogs/blkid/probe.c
@@ -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)
 {
         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",
                    blkid_le32(es->s_feature_compat),
@@ -168,7 +168,7 @@ static int probe_vfat(int fd __BLKID_ATTR((unused)),
 {
         struct vfat_super_block *vs;
         char serno[10];
-        const char *label = 0;
+        const char *label = NULL;
         int label_len = 0;
 
         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;
         char serno[10];
-        const char *label = 0;
+        const char *label = NULL;
         int label_len = 0;
 
         if (strncmp(ms->ms_label, "NO NAME", 7)) {
@@ -232,7 +232,7 @@ static int probe_xfs(int fd __BLKID_ATTR((unused)),
                      unsigned char *buf)
 {
         struct xfs_super_block *xs;
-        const char *label = 0;
+        const char *label = NULL;
 
         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;
         unsigned int blocksize;
-        const char *label = 0;
+        const char *label = NULL;
 
         blocksize = blkid_le16(rs->rs_blocksize);
 
@@ -277,7 +277,7 @@ static int probe_jfs(int fd __BLKID_ATTR((unused)),
                      unsigned char *buf)
 {
         struct jfs_super_block *js;
-        const char *label = 0;
+        const char *label = NULL;
 
         js = (struct jfs_super_block *)buf;
 
@@ -295,7 +295,7 @@ static int probe_romfs(int fd __BLKID_ATTR((unused)),
                        unsigned char *buf)
 {
         struct romfs_super_block *ros;
-        const char *label = 0;
+        const char *label = NULL;
 
         ros = (struct romfs_super_block *)buf;
 
@@ -312,7 +312,7 @@ static int probe_cramfs(int fd __BLKID_ATTR((unused)),
                        unsigned char *buf)
 {
         struct cramfs_super_block *csb;
-        const char *label = 0;
+        const char *label = NULL;
 
         csb = (struct cramfs_super_block *)buf;
 
diff --git a/e2fsprogs/old_e2fsprogs/blkid/resolve.c b/e2fsprogs/old_e2fsprogs/blkid/resolve.c
index 0f92158e2..295ca61bf 100644
--- a/e2fsprogs/old_e2fsprogs/blkid/resolve.c
+++ b/e2fsprogs/old_e2fsprogs/blkid/resolve.c
@@ -65,7 +65,7 @@ char *blkid_get_devname(blkid_cache cache, const char *token,
 {
         blkid_dev dev;
         blkid_cache c = cache;
-        char *t = 0, *v = 0;
+        char *t = NULL, *v = NULL;
         char *ret = NULL;
 
         if (!token)
diff --git a/e2fsprogs/old_e2fsprogs/blkid/tag.c b/e2fsprogs/old_e2fsprogs/blkid/tag.c
index c0a93df98..8337b46b6 100644
--- a/e2fsprogs/old_e2fsprogs/blkid/tag.c
+++ b/e2fsprogs/old_e2fsprogs/blkid/tag.c
@@ -112,7 +112,7 @@ int blkid_set_tag(blkid_dev dev, const char *name,
                   const char *value, const int vlength)
 {
         blkid_tag       t = 0, head = 0;
-        char            *val = 0;
+        char            *val = NULL;
 
         if (!dev || !name)
                 return -BLKID_ERR_PARAM;