From: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Date: Tue, 22 Sep 2015 13:24:37 +0000 (+0530)
Subject: usb: gadget: amd5536udc: NULL comparison
X-Git-Tag: v4.14-rc1~4422^2~12^2~44
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=1b7015083486e0e5b919981c980980afca37507e;p=platform%2Fkernel%2Flinux-rpi.git

usb: gadget: amd5536udc: NULL comparison

A NULL comparison can be written as if (var) or if (!var).

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---

diff --git a/drivers/usb/gadget/udc/amd5536udc.c b/drivers/usb/gadget/udc/amd5536udc.c
index 157bff1..cd87641 100644
--- a/drivers/usb/gadget/udc/amd5536udc.c
+++ b/drivers/usb/gadget/udc/amd5536udc.c
@@ -2185,7 +2185,7 @@ static irqreturn_t udc_data_out_isr(struct udc *dev, int ep_ix)
 		}
 
 	/* DMA */
-	} else if (!ep->cancel_transfer && req != NULL) {
+	} else if (!ep->cancel_transfer && req) {
 		ret_val = IRQ_HANDLED;
 
 		/* check for DMA done */
@@ -3189,7 +3189,7 @@ static int init_dma_pools(struct udc *dev)
 	/* setup */
 	td_stp = dma_pool_alloc(dev->stp_requests, GFP_KERNEL,
 				&dev->ep[UDC_EP0OUT_IX].td_stp_dma);
-	if (td_stp == NULL) {
+	if (!td_stp) {
 		retval = -ENOMEM;
 		goto err_alloc_dma;
 	}
@@ -3198,7 +3198,7 @@ static int init_dma_pools(struct udc *dev)
 	/* data: 0 packets !? */
 	td_data = dma_pool_alloc(dev->stp_requests, GFP_KERNEL,
 				&dev->ep[UDC_EP0OUT_IX].td_phys);
-	if (td_data == NULL) {
+	if (!td_data) {
 		retval = -ENOMEM;
 		goto err_alloc_phys;
 	}
@@ -3322,7 +3322,7 @@ static int udc_pci_probe(
 	}
 
 	dev->virt_addr = ioremap_nocache(resource, len);
-	if (dev->virt_addr == NULL) {
+	if (!dev->virt_addr) {
 		dev_dbg(&pdev->dev, "start address cannot be mapped\n");
 		retval = -EFAULT;
 		goto err_ioremap;