rcutorture: style cleanup: avoid != NULL in boolean tests

Signed-off-by: Josh Triplett <josh@kernel.org>
Cc: "Paul E. McKenney" <paulmck@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c
index 7d20d76..17cba7a 100644 (file)
--- a/kernel/rcutorture.c
+++ b/kernel/rcutorture.c
@@ -534,7 +534,7 @@ rcu_torture_writer(void *arg)
                rp->rtort_mbtest = 1;
                rcu_assign_pointer(rcu_torture_current, rp);
                smp_wmb();
-               if (old_rp != NULL) {
+               if (old_rp) {
                        i = old_rp->rtort_pipe_count;
                        if (i > RCU_TORTURE_PIPE_LEN)
                                i = RCU_TORTURE_PIPE_LEN;
@@ -685,7 +685,7 @@ rcu_torture_printk(char *page)
                               atomic_read(&rcu_torture_wcount[i]));
        }
        cnt += sprintf(&page[cnt], "\n");
-       if (cur_ops->stats != NULL)
+       if (cur_ops->stats)
                cnt += cur_ops->stats(&page[cnt]);
        return cnt;
 }
@@ -749,13 +749,13 @@ static void rcu_torture_shuffle_tasks(void)
 
        set_cpus_allowed(current, tmp_mask);
 
-       if (reader_tasks != NULL) {
+       if (reader_tasks) {
                for (i = 0; i < nrealreaders; i++)
                        if (reader_tasks[i])
                                set_cpus_allowed(reader_tasks[i], tmp_mask);
        }
 
-       if (fakewriter_tasks != NULL) {
+       if (fakewriter_tasks) {
                for (i = 0; i < nfakewriters; i++)
                        if (fakewriter_tasks[i])
                                set_cpus_allowed(fakewriter_tasks[i], tmp_mask);
@@ -808,21 +808,21 @@ rcu_torture_cleanup(void)
        int i;
 
        fullstop = 1;
-       if (shuffler_task != NULL) {
+       if (shuffler_task) {
                VERBOSE_PRINTK_STRING("Stopping rcu_torture_shuffle task");
                kthread_stop(shuffler_task);
        }
        shuffler_task = NULL;
 
-       if (writer_task != NULL) {
+       if (writer_task) {
                VERBOSE_PRINTK_STRING("Stopping rcu_torture_writer task");
                kthread_stop(writer_task);
        }
        writer_task = NULL;
 
-       if (reader_tasks != NULL) {
+       if (reader_tasks) {
                for (i = 0; i < nrealreaders; i++) {
-                       if (reader_tasks[i] != NULL) {
+                       if (reader_tasks[i]) {
                                VERBOSE_PRINTK_STRING(
                                        "Stopping rcu_torture_reader task");
                                kthread_stop(reader_tasks[i]);
@@ -834,9 +834,9 @@ rcu_torture_cleanup(void)
        }
        rcu_torture_current = NULL;
 
-       if (fakewriter_tasks != NULL) {
+       if (fakewriter_tasks) {
                for (i = 0; i < nfakewriters; i++) {
-                       if (fakewriter_tasks[i] != NULL) {
+                       if (fakewriter_tasks[i]) {
                                VERBOSE_PRINTK_STRING(
                                        "Stopping rcu_torture_fakewriter task");
                                kthread_stop(fakewriter_tasks[i]);
@@ -847,7 +847,7 @@ rcu_torture_cleanup(void)
                fakewriter_tasks = NULL;
        }
 
-       if (stats_task != NULL) {
+       if (stats_task) {
                VERBOSE_PRINTK_STRING("Stopping rcu_torture_stats task");
                kthread_stop(stats_task);
        }
@@ -858,7 +858,7 @@ rcu_torture_cleanup(void)
 
        rcu_torture_stats_print();  /* -After- the stats thread is stopped! */
 
-       if (cur_ops->cleanup != NULL)
+       if (cur_ops->cleanup)
                cur_ops->cleanup();
        if (atomic_read(&n_rcu_torture_error))
                rcu_torture_print_module_parms("End of test: FAILURE");
@@ -875,7 +875,7 @@ rcu_torture_init(void)
 
        /* Process args and tell the world that the torturer is on the job. */
 
-       for (i = 0; cur_ops = torture_ops[i], cur_ops != NULL; i++) {
+       for (i = 0; cur_ops = torture_ops[i], cur_ops; i++) {
                cur_ops = torture_ops[i];
                if (strcmp(torture_type, cur_ops->name) == 0) {
                        break;
@@ -886,7 +886,7 @@ rcu_torture_init(void)
                       torture_type);
                return (-EINVAL);
        }
-       if (cur_ops->init != NULL)
+       if (cur_ops->init)
                cur_ops->init(); /* no "goto unwind" prior to this point!!! */
 
        if (nreaders >= 0)