NULL noise: drivers/media

Acked-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

24 files changed, 37 insertions, 42 deletions

diff --git a/drivers/media/common/saa7146_core.c b/drivers/media/common/saa7146_core.c
index 168a8d3a5e55..7707b8c7394b 100644
--- a/drivers/media/common/saa7146_core.c
+++ b/drivers/media/common/saa7146_core.c
@@ -306,25 +306,22 @@ static irqreturn_t interrupt_hw(int irq, void *dev_id)
                 return IRQ_NONE;
         }
 
-        if( 0 != (dev->ext)) {
-                if( 0 != (dev->ext->irq_mask & isr )) {
-                        if( 0 != dev->ext->irq_func ) {
+        if (dev->ext) {
+                if (dev->ext->irq_mask & isr) {
+                        if (dev->ext->irq_func)
                                 dev->ext->irq_func(dev, &isr);
-                        }
                         isr &= ~dev->ext->irq_mask;
                 }
         }
         if (0 != (isr & (MASK_27))) {
                 DEB_INT(("irq: RPS0 (0x%08x).\n",isr));
-                if( 0 != dev->vv_data && 0 != dev->vv_callback) {
+                if (dev->vv_data && dev->vv_callback)
                         dev->vv_callback(dev,isr);
-                }
                 isr &= ~MASK_27;
         }
         if (0 != (isr & (MASK_28))) {
-                if( 0 != dev->vv_data && 0 != dev->vv_callback) {
+                if (dev->vv_data && dev->vv_callback)
                         dev->vv_callback(dev,isr);
-                }
                 isr &= ~MASK_28;
         }
         if (0 != (isr & (MASK_16|MASK_17))) {
diff --git a/drivers/media/common/saa7146_fops.c b/drivers/media/common/saa7146_fops.c
index f0703d8bc3e8..171afe7da6b6 100644
--- a/drivers/media/common/saa7146_fops.c
+++ b/drivers/media/common/saa7146_fops.c
@@ -272,7 +272,7 @@ static int fops_open(struct inode *inode, struct file *file)
 
         result = 0;
 out:
-        if( fh != 0 && result != 0 ) {
+        if (fh && result != 0) {
                 kfree(fh);
                 file->private_data = NULL;
         }
diff --git a/drivers/media/dvb/dvb-core/dvb_net.c b/drivers/media/dvb/dvb-core/dvb_net.c
index ed3f8268ed11..4c8b62e2c035 100644
--- a/drivers/media/dvb/dvb-core/dvb_net.c
+++ b/drivers/media/dvb/dvb-core/dvb_net.c
@@ -784,8 +784,8 @@ static int dvb_net_ts_callback(const u8 *buffer1, size_t buffer1_len,
 {
         struct net_device *dev = feed->priv;
 
-        if (buffer2 != 0)
-                printk(KERN_WARNING "buffer2 not 0: %p.\n", buffer2);
+        if (buffer2)
+                printk(KERN_WARNING "buffer2 not NULL: %p.\n", buffer2);
         if (buffer1_len > 32768)
                 printk(KERN_WARNING "length > 32k: %zu.\n", buffer1_len);
         /* printk("TS callback: %u bytes, %u TS cells @ %p.\n",
diff --git a/drivers/media/video/adv7170.c b/drivers/media/video/adv7170.c
index cbab53fc6243..fea2e723e34b 100644
--- a/drivers/media/video/adv7170.c
+++ b/drivers/media/video/adv7170.c
@@ -408,7 +408,7 @@ adv7170_detect_client (struct i2c_adapter *adapter,
                 return 0;
 
         client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
-        if (client == 0)
+        if (!client)
                 return -ENOMEM;
         client->addr = address;
         client->adapter = adapter;
diff --git a/drivers/media/video/adv7175.c b/drivers/media/video/adv7175.c
index 0d0c554bfdf7..10d4d89623f1 100644
--- a/drivers/media/video/adv7175.c
+++ b/drivers/media/video/adv7175.c
@@ -426,7 +426,7 @@ adv7175_detect_client (struct i2c_adapter *adapter,
                 return 0;
 
         client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
-        if (client == 0)
+        if (!client)
                 return -ENOMEM;
         client->addr = address;
         client->adapter = adapter;
diff --git a/drivers/media/video/bt819.c b/drivers/media/video/bt819.c
index 12d1b9248be5..e663cc045c41 100644
--- a/drivers/media/video/bt819.c
+++ b/drivers/media/video/bt819.c
@@ -524,7 +524,7 @@ bt819_detect_client (struct i2c_adapter *adapter,
                 return 0;
 
         client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
-        if (client == 0)
+        if (!client)
                 return -ENOMEM;
         client->addr = address;
         client->adapter = adapter;
diff --git a/drivers/media/video/bt856.c b/drivers/media/video/bt856.c
index e1028a76c042..7dee2e3235ad 100644
--- a/drivers/media/video/bt856.c
+++ b/drivers/media/video/bt856.c
@@ -311,7 +311,7 @@ bt856_detect_client (struct i2c_adapter *adapter,
                 return 0;
 
         client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
-        if (client == 0)
+        if (!client)
                 return -ENOMEM;
         client->addr = address;
         client->adapter = adapter;
diff --git a/drivers/media/video/dpc7146.c b/drivers/media/video/dpc7146.c
index 566e479e2629..9ceb6b2f3949 100644
--- a/drivers/media/video/dpc7146.c
+++ b/drivers/media/video/dpc7146.c
@@ -131,7 +131,7 @@ static int dpc_probe(struct saa7146_dev* dev)
         device_for_each_child(&dpc->i2c_adapter.dev, dpc, dpc_check_clients);
 
         /* check if all devices are present */
-        if( 0 == dpc->saa7111a ) {
+        if (!dpc->saa7111a) {
                 DEB_D(("dpc_v4l2.o: dpc_attach failed for this device.\n"));
                 i2c_del_adapter(&dpc->i2c_adapter);
                 kfree(dpc);
diff --git a/drivers/media/video/mt20xx.c b/drivers/media/video/mt20xx.c
index 58bab653330f..74fd6a01d4c4 100644
--- a/drivers/media/video/mt20xx.c
+++ b/drivers/media/video/mt20xx.c
@@ -647,7 +647,7 @@ struct dvb_frontend *microtune_attach(struct dvb_frontend *fe,
         default:
                 tuner_info("microtune %s found, not (yet?) supported, sorry :-/\n",
                            name);
-                return 0;
+                return NULL;
         }
 
         strlcpy(fe->ops.tuner_ops.info.name, name,
diff --git a/drivers/media/video/mxb.c b/drivers/media/video/mxb.c
index add6d0d680be..cb5a510f9251 100644
--- a/drivers/media/video/mxb.c
+++ b/drivers/media/video/mxb.c
@@ -221,9 +221,8 @@ static int mxb_probe(struct saa7146_dev* dev)
         device_for_each_child(&mxb->i2c_adapter.dev, mxb, mxb_check_clients);
 
         /* check if all devices are present */
-        if(    0 == mxb->tea6420_1      || 0 == mxb->tea6420_2  || 0 == mxb->tea6415c
-            || 0 == mxb->tda9840        || 0 == mxb->saa7111a   || 0 == mxb->tuner ) {
-
+        if (!mxb->tea6420_1 || !mxb->tea6420_2 || !mxb->tea6415c ||
+            !mxb->tda9840 || !mxb->saa7111a || !mxb->tuner) {
                 printk("mxb: did not find all i2c devices. aborting\n");
                 i2c_del_adapter(&mxb->i2c_adapter);
                 kfree(mxb);
diff --git a/drivers/media/video/pvrusb2/pvrusb2-ctrl.c b/drivers/media/video/pvrusb2/pvrusb2-ctrl.c
index 46f156fb108c..5a3e8d21a38a 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-ctrl.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-ctrl.c
@@ -60,7 +60,7 @@ int pvr2_ctrl_set_mask_value(struct pvr2_ctrl *cptr,int mask,int val)
         int ret = 0;
         if (!cptr) return -EINVAL;
         LOCK_TAKE(cptr->hdw->big_lock); do {
-                if (cptr->info->set_value != 0) {
+                if (cptr->info->set_value) {
                         if (cptr->info->type == pvr2_ctl_bitmask) {
                                 mask &= cptr->info->def.type_bitmask.valid_bits;
                         } else if (cptr->info->type == pvr2_ctl_int) {
@@ -265,7 +265,7 @@ unsigned int pvr2_ctrl_get_v4lflags(struct pvr2_ctrl *cptr)
 int pvr2_ctrl_is_writable(struct pvr2_ctrl *cptr)
 {
         if (!cptr) return 0;
-        return cptr->info->set_value != 0;
+        return cptr->info->set_value != NULL;
 }
 
 
diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/drivers/media/video/pvrusb2/pvrusb2-hdw.c
index 41ae980405ed..d6955fa39598 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-hdw.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.c
@@ -2291,7 +2291,7 @@ static int pvr2_hdw_commit_setup(struct pvr2_hdw *hdw)
 
         for (idx = 0; idx < hdw->control_cnt; idx++) {
                 cptr = hdw->controls + idx;
-                if (cptr->info->is_dirty == 0) continue;
+                if (!cptr->info->is_dirty) continue;
                 if (!cptr->info->is_dirty(cptr)) continue;
                 commit_flag = !0;
 
@@ -2646,7 +2646,7 @@ void pvr2_hdw_cpufw_set_enabled(struct pvr2_hdw *hdw,
         u16 address;
         unsigned int pipe;
         LOCK_TAKE(hdw->big_lock); do {
-                if ((hdw->fw_buffer == 0) == !enable_flag) break;
+                if ((hdw->fw_buffer == NULL) == !enable_flag) break;
 
                 if (!enable_flag) {
                         pvr2_trace(PVR2_TRACE_FIRMWARE,
@@ -2715,7 +2715,7 @@ void pvr2_hdw_cpufw_set_enabled(struct pvr2_hdw *hdw,
 /* Return true if we're in a mode for retrieval CPU firmware */
 int pvr2_hdw_cpufw_get_enabled(struct pvr2_hdw *hdw)
 {
-        return hdw->fw_buffer != 0;
+        return hdw->fw_buffer != NULL;
 }
 
 
diff --git a/drivers/media/video/pvrusb2/pvrusb2-io.c b/drivers/media/video/pvrusb2/pvrusb2-io.c
index ce3c8982ffe0..a9889ff96ecc 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-io.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-io.c
@@ -563,7 +563,7 @@ void pvr2_stream_kill(struct pvr2_stream *sp)
         struct pvr2_buffer *bp;
         mutex_lock(&sp->mutex); do {
                 pvr2_stream_internal_flush(sp);
-                while ((bp = pvr2_stream_get_ready_buffer(sp)) != 0) {
+                while ((bp = pvr2_stream_get_ready_buffer(sp)) != NULL) {
                         pvr2_buffer_set_idle(bp);
                 }
                 if (sp->buffer_total_count != sp->buffer_target_count) {
diff --git a/drivers/media/video/pvrusb2/pvrusb2-ioread.c b/drivers/media/video/pvrusb2/pvrusb2-ioread.c
index f782418afa45..c572212c9f15 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-ioread.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-ioread.c
@@ -165,7 +165,7 @@ static int pvr2_ioread_start(struct pvr2_ioread *cp)
         if (!(cp->stream)) return 0;
         pvr2_trace(PVR2_TRACE_START_STOP,
                    "/*---TRACE_READ---*/ pvr2_ioread_start id=%p",cp);
-        while ((bp = pvr2_stream_get_idle_buffer(cp->stream)) != 0) {
+        while ((bp = pvr2_stream_get_idle_buffer(cp->stream)) != NULL) {
                 stat = pvr2_buffer_queue(bp);
                 if (stat < 0) {
                         pvr2_trace(PVR2_TRACE_DATA_FLOW,
diff --git a/drivers/media/video/pwc/pwc-if.c b/drivers/media/video/pwc/pwc-if.c
index f991d72fe108..e0a453a6543d 100644
--- a/drivers/media/video/pwc/pwc-if.c
+++ b/drivers/media/video/pwc/pwc-if.c
@@ -915,7 +915,7 @@ static void pwc_iso_stop(struct pwc_device *pdev)
                 struct urb *urb;
 
                 urb = pdev->sbuf[i].urb;
-                if (urb != 0) {
+                if (urb) {
                         PWC_DEBUG_MEMORY("Unlinking URB %p\n", urb);
                         usb_kill_urb(urb);
                 }
@@ -931,7 +931,7 @@ static void pwc_iso_free(struct pwc_device *pdev)
                 struct urb *urb;
 
                 urb = pdev->sbuf[i].urb;
-                if (urb != 0) {
+                if (urb) {
                         PWC_DEBUG_MEMORY("Freeing URB\n");
                         usb_free_urb(urb);
                         pdev->sbuf[i].urb = NULL;
@@ -1759,8 +1759,7 @@ static int usb_pwc_probe(struct usb_interface *intf, const struct usb_device_id
 
         /* Allocate video_device structure */
         pdev->vdev = video_device_alloc();
-        if (pdev->vdev == 0)
-        {
+        if (!pdev->vdev) {
                 PWC_ERROR("Err, cannot allocate video_device struture. Failing probe.");
                 kfree(pdev);
                 return -ENOMEM;
diff --git a/drivers/media/video/saa7110.c b/drivers/media/video/saa7110.c
index 061134a7ba9f..1df2602cd184 100644
--- a/drivers/media/video/saa7110.c
+++ b/drivers/media/video/saa7110.c
@@ -488,7 +488,7 @@ saa7110_detect_client (struct i2c_adapter *adapter,
                 return 0;
 
         client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
-        if (client == 0)
+        if (!client)
                 return -ENOMEM;
         client->addr = address;
         client->adapter = adapter;
@@ -496,7 +496,7 @@ saa7110_detect_client (struct i2c_adapter *adapter,
         strlcpy(I2C_NAME(client), "saa7110", sizeof(I2C_NAME(client)));
 
         decoder = kzalloc(sizeof(struct saa7110), GFP_KERNEL);
-        if (decoder == 0) {
+        if (!decoder) {
                 kfree(client);
                 return -ENOMEM;
         }
diff --git a/drivers/media/video/saa7111.c b/drivers/media/video/saa7111.c
index 7ae2d646d000..a0772c53bb1f 100644
--- a/drivers/media/video/saa7111.c
+++ b/drivers/media/video/saa7111.c
@@ -502,7 +502,7 @@ saa7111_detect_client (struct i2c_adapter *adapter,
                 return 0;
 
         client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
-        if (client == 0)
+        if (!client)
                 return -ENOMEM;
         client->addr = address;
         client->adapter = adapter;
diff --git a/drivers/media/video/saa7114.c b/drivers/media/video/saa7114.c
index 677df51de1a9..bf91a4faa706 100644
--- a/drivers/media/video/saa7114.c
+++ b/drivers/media/video/saa7114.c
@@ -841,7 +841,7 @@ saa7114_detect_client (struct i2c_adapter *adapter,
                 return 0;
 
         client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
-        if (client == 0)
+        if (!client)
                 return -ENOMEM;
         client->addr = address;
         client->adapter = adapter;
diff --git a/drivers/media/video/saa7185.c b/drivers/media/video/saa7185.c
index 66cc92c0ea66..41f70440fd3b 100644
--- a/drivers/media/video/saa7185.c
+++ b/drivers/media/video/saa7185.c
@@ -403,7 +403,7 @@ saa7185_detect_client (struct i2c_adapter *adapter,
                 return 0;
 
         client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
-        if (client == 0)
+        if (!client)
                 return -ENOMEM;
         client->addr = address;
         client->adapter = adapter;
diff --git a/drivers/media/video/tda9840.c b/drivers/media/video/tda9840.c
index ef494febb5e4..bdca5d278978 100644
--- a/drivers/media/video/tda9840.c
+++ b/drivers/media/video/tda9840.c
@@ -172,7 +172,7 @@ static int detect(struct i2c_adapter *adapter, int address, int kind)
 
         /* allocate memory for client structure */
         client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
-        if (0 == client) {
+        if (!client) {
                 printk("not enough kernel memory\n");
                 return -ENOMEM;
         }
diff --git a/drivers/media/video/tea6415c.c b/drivers/media/video/tea6415c.c
index 523df0b8cc63..df2fad9f391e 100644
--- a/drivers/media/video/tea6415c.c
+++ b/drivers/media/video/tea6415c.c
@@ -64,7 +64,7 @@ static int detect(struct i2c_adapter *adapter, int address, int kind)
 
         /* allocate memory for client structure */
         client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
-        if (0 == client) {
+        if (!client) {
                 return -ENOMEM;
         }
 
diff --git a/drivers/media/video/tea6420.c b/drivers/media/video/tea6420.c
index ca05cd655087..4ff6c63f7237 100644
--- a/drivers/media/video/tea6420.c
+++ b/drivers/media/video/tea6420.c
@@ -101,7 +101,7 @@ static int tea6420_detect(struct i2c_adapter *adapter, int address, int kind)
 
         /* allocate memory for client structure */
         client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
-        if (0 == client) {
+        if (!client) {
                 return -ENOMEM;
         }
 
diff --git a/drivers/media/video/tvp5150.c b/drivers/media/video/tvp5150.c
index d28318cb2b8d..b6e24e714a23 100644
--- a/drivers/media/video/tvp5150.c
+++ b/drivers/media/video/tvp5150.c
@@ -1072,12 +1072,12 @@ static int tvp5150_detect_client(struct i2c_adapter *adapter,
                 return 0;
 
         c = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
-        if (c == 0)
+        if (!c)
                 return -ENOMEM;
         memcpy(c, &client_template, sizeof(struct i2c_client));
 
         core = kzalloc(sizeof(struct tvp5150), GFP_KERNEL);
-        if (core == 0) {
+        if (!core) {
                 kfree(c);
                 return -ENOMEM;
         }
diff --git a/drivers/media/video/zoran_driver.c b/drivers/media/video/zoran_driver.c
index dd3d7d2c8b0e..fea4946ee713 100644
--- a/drivers/media/video/zoran_driver.c
+++ b/drivers/media/video/zoran_driver.c
@@ -339,7 +339,7 @@ v4l_fbuffer_alloc (struct file *file)
                         /* Use kmalloc */
 
                         mem = kmalloc(fh->v4l_buffers.buffer_size, GFP_KERNEL);
-                        if (mem == 0) {
+                        if (!mem) {
                                 dprintk(1,
                                         KERN_ERR
                                         "%s: v4l_fbuffer_alloc() - kmalloc for V4L buf %d failed\n",