staging/easycap: convert comparison to NULL into boolean

convert if (NULL != ptr) to if (ptr)
convert if (NULL == ptr) to if (!ptr)

Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 40 insertions, 40 deletions

diff --git a/drivers/staging/easycap/easycap_sound.c b/drivers/staging/easycap/easycap_sound.c
index d0ef7af8151..5829e26969d 100644
--- a/drivers/staging/easycap/easycap_sound.c
+++ b/drivers/staging/easycap/easycap_sound.c
@@ -83,12 +83,12 @@ easycap_alsa_complete(struct urb *purb)
 
         JOT(16, "\n");
 
-        if (NULL == purb) {
+        if (!purb) {
                 SAY("ERROR: purb is NULL\n");
                 return;
         }
         peasycap = purb->context;
-        if (NULL == peasycap) {
+        if (!peasycap) {
                 SAY("ERROR: peasycap is NULL\n");
                 return;
         }
@@ -105,10 +105,10 @@ easycap_alsa_complete(struct urb *purb)
         }
 /*---------------------------------------------------------------------------*/
         pss = peasycap->psubstream;
-        if (NULL == pss)
+        if (!pss)
                 goto resubmit;
         prt = pss->runtime;
-        if (NULL == prt)
+        if (!prt)
                 goto resubmit;
         dma_bytes = (int)prt->dma_bytes;
         if (0 == dma_bytes)
@@ -294,23 +294,23 @@ static int easycap_alsa_open(struct snd_pcm_substream *pss)
         struct easycap *peasycap;
 
         JOT(4, "\n");
-        if (NULL == pss) {
+        if (!pss) {
                 SAY("ERROR:  pss is NULL\n");
                 return -EFAULT;
         }
         psnd_pcm = pss->pcm;
-        if (NULL == psnd_pcm) {
+        if (!psnd_pcm) {
                 SAY("ERROR:  psnd_pcm is NULL\n");
                 return -EFAULT;
         }
         psnd_card = psnd_pcm->card;
-        if (NULL == psnd_card) {
+        if (!psnd_card) {
                 SAY("ERROR:  psnd_card is NULL\n");
                 return -EFAULT;
         }
 
         peasycap = psnd_card->private_data;
-        if (NULL == peasycap) {
+        if (!peasycap) {
                 SAY("ERROR:  peasycap is NULL\n");
                 return -EFAULT;
         }
@@ -322,7 +322,7 @@ static int easycap_alsa_open(struct snd_pcm_substream *pss)
                 SAM("ERROR: bad peasycap->psnd_card\n");
                 return -EFAULT;
         }
-        if (NULL != peasycap->psubstream) {
+        if (peasycap->psubstream) {
                 SAM("ERROR: bad peasycap->psubstream\n");
                 return -EFAULT;
         }
@@ -345,12 +345,12 @@ static int easycap_alsa_close(struct snd_pcm_substream *pss)
         struct easycap *peasycap;
 
         JOT(4, "\n");
-        if (NULL == pss) {
+        if (!pss) {
                 SAY("ERROR:  pss is NULL\n");
                 return -EFAULT;
         }
         peasycap = snd_pcm_substream_chip(pss);
-        if (NULL == peasycap) {
+        if (!peasycap) {
                 SAY("ERROR:  peasycap is NULL\n");
                 return -EFAULT;
         }
@@ -369,12 +369,12 @@ static int easycap_alsa_vmalloc(struct snd_pcm_substream *pss, size_t sz)
         struct snd_pcm_runtime *prt;
         JOT(4, "\n");
 
-        if (NULL == pss) {
+        if (!pss) {
                 SAY("ERROR:  pss is NULL\n");
                 return -EFAULT;
         }
         prt = pss->runtime;
-        if (NULL == prt) {
+        if (!prt) {
                 SAY("ERROR: substream.runtime is NULL\n");
                 return -EFAULT;
         }
@@ -384,7 +384,7 @@ static int easycap_alsa_vmalloc(struct snd_pcm_substream *pss, size_t sz)
                 vfree(prt->dma_area);
         }
         prt->dma_area = vmalloc(sz);
-        if (NULL == prt->dma_area)
+        if (!prt->dma_area)
                 return -ENOMEM;
         prt->dma_bytes = sz;
         return 0;
@@ -396,7 +396,7 @@ static int easycap_alsa_hw_params(struct snd_pcm_substream *pss,
         int rc;
 
         JOT(4, "%i\n", (params_buffer_bytes(phw)));
-        if (NULL == pss) {
+        if (!pss) {
                 SAY("ERROR:  pss is NULL\n");
                 return -EFAULT;
         }
@@ -411,16 +411,16 @@ static int easycap_alsa_hw_free(struct snd_pcm_substream *pss)
         struct snd_pcm_runtime *prt;
         JOT(4, "\n");
 
-        if (NULL == pss) {
+        if (!pss) {
                 SAY("ERROR:  pss is NULL\n");
                 return -EFAULT;
         }
         prt = pss->runtime;
-        if (NULL == prt) {
+        if (!prt) {
                 SAY("ERROR: substream.runtime is NULL\n");
                 return -EFAULT;
         }
-        if (NULL != prt->dma_area) {
+        if (prt->dma_area) {
                 JOT(8, "prt->dma_area = %p\n", prt->dma_area);
                 vfree(prt->dma_area);
                 prt->dma_area = NULL;
@@ -435,13 +435,13 @@ static int easycap_alsa_prepare(struct snd_pcm_substream *pss)
         struct snd_pcm_runtime *prt;
 
         JOT(4, "\n");
-        if (NULL == pss) {
+        if (!pss) {
                 SAY("ERROR:  pss is NULL\n");
                 return -EFAULT;
         }
         prt = pss->runtime;
         peasycap = snd_pcm_substream_chip(pss);
-        if (NULL == peasycap) {
+        if (!peasycap) {
                 SAY("ERROR:  peasycap is NULL\n");
                 return -EFAULT;
         }
@@ -483,12 +483,12 @@ static int easycap_alsa_trigger(struct snd_pcm_substream *pss, int cmd)
 
         JOT(4, "%i=cmd cf %i=START %i=STOP\n", cmd, SNDRV_PCM_TRIGGER_START,
             SNDRV_PCM_TRIGGER_STOP);
-        if (NULL == pss) {
+        if (!pss) {
                 SAY("ERROR:  pss is NULL\n");
                 return -EFAULT;
         }
         peasycap = snd_pcm_substream_chip(pss);
-        if (NULL == peasycap) {
+        if (!peasycap) {
                 SAY("ERROR:  peasycap is NULL\n");
                 return -EFAULT;
         }
@@ -518,12 +518,12 @@ static snd_pcm_uframes_t easycap_alsa_pointer(struct snd_pcm_substream *pss)
         snd_pcm_uframes_t offset;
 
         JOT(16, "\n");
-        if (NULL == pss) {
+        if (!pss) {
                 SAY("ERROR:  pss is NULL\n");
                 return -EFAULT;
         }
         peasycap = snd_pcm_substream_chip(pss);
-        if (NULL == peasycap) {
+        if (!peasycap) {
                 SAY("ERROR:  peasycap is NULL\n");
                 return -EFAULT;
         }
@@ -584,7 +584,7 @@ int easycap_alsa_probe(struct easycap *peasycap)
         struct snd_card *psnd_card;
         struct snd_pcm *psnd_pcm;
 
-        if (NULL == peasycap) {
+        if (!peasycap) {
                 SAY("ERROR: peasycap is NULL\n");
                 return -ENODEV;
         }
@@ -669,11 +669,11 @@ easycap_sound_setup(struct easycap *peasycap)
 
         JOM(4, "starting initialization\n");
 
-        if (NULL == peasycap) {
+        if (!peasycap) {
                 SAY("ERROR:  peasycap is NULL.\n");
                 return -EFAULT;
         }
-        if (NULL == peasycap->pusb_device) {
+        if (!peasycap->pusb_device) {
                 SAM("ERROR: peasycap->pusb_device is NULL\n");
                 return -ENODEV;
         }
@@ -682,12 +682,12 @@ easycap_sound_setup(struct easycap *peasycap)
         rc = audio_setup(peasycap);
         JOM(8, "audio_setup() returned %i\n", rc);
 
-        if (NULL == peasycap->pusb_device) {
+        if (!peasycap->pusb_device) {
                 SAM("ERROR: peasycap->pusb_device has become NULL\n");
                 return -ENODEV;
         }
 /*---------------------------------------------------------------------------*/
-        if (NULL == peasycap->pusb_device) {
+        if (!peasycap->pusb_device) {
                 SAM("ERROR: peasycap->pusb_device has become NULL\n");
                 return -ENODEV;
         }
@@ -725,15 +725,15 @@ submit_audio_urbs(struct easycap *peasycap)
         int j, isbad, nospc, m, rc;
         int isbuf;
 
-        if (NULL == peasycap) {
+        if (!peasycap) {
                 SAY("ERROR: peasycap is NULL\n");
                 return -EFAULT;
         }
-        if (NULL == peasycap->purb_audio_head) {
+        if (!peasycap->purb_audio_head) {
                 SAM("ERROR: peasycap->urb_audio_head uninitialized\n");
                 return -EFAULT;
         }
-        if (NULL == peasycap->pusb_device) {
+        if (!peasycap->pusb_device) {
                 SAM("ERROR: peasycap->pusb_device is NULL\n");
                 return -EFAULT;
         }
@@ -751,9 +751,9 @@ submit_audio_urbs(struct easycap *peasycap)
                 m = 0;
                 list_for_each(plist_head, (peasycap->purb_audio_head)) {
                         pdata_urb = list_entry(plist_head, struct data_urb, list_head);
-                        if (NULL != pdata_urb) {
+                        if (pdata_urb) {
                                 purb = pdata_urb->purb;
-                                if (NULL != purb) {
+                                if (purb) {
                                         isbuf = pdata_urb->isbuf;
 
                                         purb->interval = 1;
@@ -801,9 +801,9 @@ submit_audio_urbs(struct easycap *peasycap)
                         JOM(4, "attempting cleanup instead of submitting\n");
                         list_for_each(plist_head, (peasycap->purb_audio_head)) {
                                 pdata_urb = list_entry(plist_head, struct data_urb, list_head);
-                                if (NULL != pdata_urb) {
+                                if (pdata_urb) {
                                         purb = pdata_urb->purb;
-                                        if (NULL != purb)
+                                        if (purb)
                                                 usb_kill_urb(purb);
                                 }
                         }
@@ -830,19 +830,19 @@ kill_audio_urbs(struct easycap *peasycap)
         struct list_head *plist_head;
         struct data_urb *pdata_urb;
 
-        if (NULL == peasycap) {
+        if (!peasycap) {
                 SAY("ERROR: peasycap is NULL\n");
                 return -EFAULT;
         }
         if (peasycap->audio_isoc_streaming) {
-                if (NULL != peasycap->purb_audio_head) {
+                if (peasycap->purb_audio_head) {
                         peasycap->audio_isoc_streaming = 0;
                         JOM(4, "killing audio urbs\n");
                         m = 0;
                         list_for_each(plist_head, (peasycap->purb_audio_head)) {
                                 pdata_urb = list_entry(plist_head, struct data_urb, list_head);
-                                if (NULL != pdata_urb) {
-                                        if (NULL != pdata_urb->purb) {
+                                if (pdata_urb) {
+                                        if (pdata_urb->purb) {
                                                 usb_kill_urb(pdata_urb->purb);
                                                 m++;
                                         }