staging: speakup: (coding style) Simplify comparisons to NULL

Fix checkpatch check notices by simplifying comparisons to NULL.

Signed-off-by: Olav Haugan <ohaugan@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/speakup/synth.c b/drivers/staging/speakup/synth.c
index a61c02ba06daec5e051eea3a1980c0b199626b1c..b57315110e67a57106aaab4ea61f7ade47fd0a8d 100644 (file)
--- a/drivers/staging/speakup/synth.c
+++ b/drivers/staging/speakup/synth.c
@@ -51,7 +51,7 @@ int spk_serial_synth_probe(struct spk_synth *synth)
 
        if ((synth->ser >= SPK_LO_TTY) && (synth->ser <= SPK_HI_TTY)) {
                ser = spk_serial_init(synth->ser);
-               if (ser == NULL) {
+               if (!ser) {
                        failed = -1;
                } else {
                        outb_p(0, ser->port);
@@ -272,7 +272,7 @@ void spk_reset_index_count(int sc)
 
 int synth_supports_indexing(void)
 {
-       if (synth->get_index != NULL)
+       if (synth->get_index)
                return 1;
        return 0;
 }
@@ -350,7 +350,7 @@ int synth_init(char *synth_name)
        int ret = 0;
        struct spk_synth *synth = NULL;
 
-       if (synth_name == NULL)
+       if (!synth_name)
                return 0;
 
        if (strcmp(synth_name, "none") == 0) {
@@ -362,7 +362,7 @@ int synth_init(char *synth_name)
 
        mutex_lock(&spk_mutex);
        /* First, check if we already have it loaded. */
-       for (i = 0; i < MAXSYNTHS && synths[i] != NULL; i++)
+       for (i = 0; i < MAXSYNTHS && synths[i]; i++)
                if (strcmp(synths[i]->name, synth_name) == 0)
                        synth = synths[i];
 
@@ -421,7 +421,7 @@ void synth_release(void)
        struct var_t *var;
        unsigned long flags;
 
-       if (synth == NULL)
+       if (!synth)
                return;
        spin_lock_irqsave(&speakup_info.spinlock, flags);
        pr_info("releasing synth %s\n", synth->name);
@@ -444,7 +444,7 @@ int synth_add(struct spk_synth *in_synth)
        int status = 0;
 
        mutex_lock(&spk_mutex);
-       for (i = 0; i < MAXSYNTHS && synths[i] != NULL; i++)
+       for (i = 0; i < MAXSYNTHS && synths[i]; i++)
                /* synth_remove() is responsible for rotating the array down */
                if (in_synth == synths[i]) {
                        mutex_unlock(&spk_mutex);
@@ -471,11 +471,11 @@ void synth_remove(struct spk_synth *in_synth)
        mutex_lock(&spk_mutex);
        if (synth == in_synth)
                synth_release();
-       for (i = 0; synths[i] != NULL; i++) {
+       for (i = 0; synths[i]; i++) {
                if (in_synth == synths[i])
                        break;
        }
-       for ( ; synths[i] != NULL; i++) /* compress table */
+       for ( ; synths[i]; i++) /* compress table */
                synths[i] = synths[i + 1];
        module_status = 0;
        mutex_unlock(&spk_mutex);