sparse pointer use of zero as null
[linux-2.6.git] / fs / jbd / journal.c
index 65c2904..5d9fec0 100644 (file)
@@ -217,7 +217,7 @@ static int journal_start_thread(journal_t *journal)
        if (IS_ERR(t))
                return PTR_ERR(t);
 
-       wait_event(journal->j_wait_done_commit, journal->j_task != 0);
+       wait_event(journal->j_wait_done_commit, journal->j_task != NULL);
        return 0;
 }
 
@@ -229,7 +229,8 @@ static void journal_kill_thread(journal_t *journal)
        while (journal->j_task) {
                wake_up(&journal->j_wait_commit);
                spin_unlock(&journal->j_state_lock);
-               wait_event(journal->j_wait_done_commit, journal->j_task == 0);
+               wait_event(journal->j_wait_done_commit,
+                               journal->j_task == NULL);
                spin_lock(&journal->j_state_lock);
        }
        spin_unlock(&journal->j_state_lock);
@@ -1651,14 +1652,14 @@ static struct journal_head *journal_alloc_journal_head(void)
        atomic_inc(&nr_journal_heads);
 #endif
        ret = kmem_cache_alloc(journal_head_cache, GFP_NOFS);
-       if (ret == 0) {
+       if (ret == NULL) {
                jbd_debug(1, "out of memory for journal_head\n");
                if (time_after(jiffies, last_warning + 5*HZ)) {
                        printk(KERN_NOTICE "ENOMEM in %s, retrying.\n",
                               __FUNCTION__);
                        last_warning = jiffies;
                }
-               while (ret == 0) {
+               while (ret == NULL) {
                        yield();
                        ret = kmem_cache_alloc(journal_head_cache, GFP_NOFS);
                }