irda: w83977af_ir: Neaten pointer comparisons

Convert pointer comparisons to NULL.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/irda/w83977af_ir.c

@@ -168,7 +168,7 @@ static int w83977af_open(int i, unsigned int iobase, unsigned int irq,
 	 *  Allocate new instance of the driver
 	 */
 	dev = alloc_irdadev(sizeof(struct w83977af_ir));
-	if (dev == NULL) {
+	if (!dev) {
 		printk(KERN_ERR "IrDA: Can't allocate memory for "
 			"IrDA control block!\n");
 		err = -ENOMEM;
@@ -206,7 +206,7 @@ static int w83977af_open(int i, unsigned int iobase, unsigned int irq,
 	self->rx_buff.head =
 		dma_zalloc_coherent(NULL, self->rx_buff.truesize,
 				    &self->rx_buff_dma, GFP_KERNEL);
-	if (self->rx_buff.head == NULL) {
+	if (!self->rx_buff.head) {
 		err = -ENOMEM;
 		goto err_out1;
 	}
@@ -214,7 +214,7 @@ static int w83977af_open(int i, unsigned int iobase, unsigned int irq,
 	self->tx_buff.head =
 		dma_zalloc_coherent(NULL, self->tx_buff.truesize,
 				    &self->tx_buff_dma, GFP_KERNEL);
-	if (self->tx_buff.head == NULL) {
+	if (!self->tx_buff.head) {
 		err = -ENOMEM;
 		goto err_out2;
 	}
@@ -629,7 +629,7 @@ static void w83977af_dma_xmit_complete(struct w83977af_ir *self)
 
 	pr_debug("%s(%ld)\n", __func__, jiffies);
 
-	IRDA_ASSERT(self != NULL, return;);
+	IRDA_ASSERT(self, return;);
 
 	iobase = self->io.fir_base;
 
@@ -680,7 +680,7 @@ static int w83977af_dma_receive(struct w83977af_ir *self)
 	unsigned long flags;
 	__u8 hcr;
 #endif
-	IRDA_ASSERT(self != NULL, return -1;);
+	IRDA_ASSERT(self, return -1;);
 
 	pr_debug("%s\n", __func__);
 
@@ -818,7 +818,7 @@ static int w83977af_dma_receive_complete(struct w83977af_ir *self)
 			}
 
 			skb = dev_alloc_skb(len + 1);
-			if (skb == NULL)  {
+			if (!skb)  {
 				printk(KERN_INFO
 				       "%s(), memory squeeze, dropping frame.\n", __func__);
 				/* Restore set register */
@@ -870,7 +870,7 @@ static void w83977af_pio_receive(struct w83977af_ir *self)
 	__u8 byte = 0x00;
 	int iobase;
 
-	IRDA_ASSERT(self != NULL, return;);
+	IRDA_ASSERT(self, return;);
 
 	iobase = self->io.fir_base;
 
@@ -1081,7 +1081,7 @@ static int w83977af_is_receiving(struct w83977af_ir *self)
 	int iobase;
 	__u8 set;
 
-	IRDA_ASSERT(self != NULL, return FALSE;);
+	IRDA_ASSERT(self, return FALSE;);
 
 	if (self->io.speed > 115200) {
 		iobase = self->io.fir_base;
@@ -1113,10 +1113,10 @@ static int w83977af_net_open(struct net_device *dev)
 	char hwname[32];
 	__u8 set;
 
-	IRDA_ASSERT(dev != NULL, return -1;);
+	IRDA_ASSERT(dev, return -1;);
 	self = netdev_priv(dev);
 
-	IRDA_ASSERT(self != NULL, return 0;);
+	IRDA_ASSERT(self, return 0;);
 
 	iobase = self->io.fir_base;
 
@@ -1174,11 +1174,11 @@ static int w83977af_net_close(struct net_device *dev)
 	int iobase;
 	__u8 set;
 
-	IRDA_ASSERT(dev != NULL, return -1;);
+	IRDA_ASSERT(dev, return -1;);
 
 	self = netdev_priv(dev);
 
-	IRDA_ASSERT(self != NULL, return 0;);
+	IRDA_ASSERT(self, return 0;);
 
 	iobase = self->io.fir_base;
 
@@ -1221,11 +1221,11 @@ static int w83977af_net_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 	unsigned long flags;
 	int ret = 0;
 
-	IRDA_ASSERT(dev != NULL, return -1;);
+	IRDA_ASSERT(dev, return -1;);
 
 	self = netdev_priv(dev);
 
-	IRDA_ASSERT(self != NULL, return -1;);
+	IRDA_ASSERT(self, return -1;);
 
 	pr_debug("%s(), %s, (cmd=0x%X)\n", __func__, dev->name, cmd);