ARM: mx5: check for error in ioremap

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

arch/arm/mach-mx5/board-cpuimx51.c

@@ -178,6 +178,8 @@ static int initialize_otg_port(struct platform_device *pdev)
 	void __iomem *usbother_base;
 
 	usb_base = ioremap(MX51_OTG_BASE_ADDR, SZ_4K);
+	if (!usb_base)
+		return -ENOMEM;
 	usbother_base = usb_base + MX5_USBOTHER_REGS_OFFSET;
 
 	/* Set the PHY clock to 19.2MHz */
@@ -196,6 +198,8 @@ static int initialize_usbh1_port(struct platform_device *pdev)
 	void __iomem *usbother_base;
 
 	usb_base = ioremap(MX51_OTG_BASE_ADDR, SZ_4K);
+	if (!usb_base)
+		return -ENOMEM;
 	usbother_base = usb_base + MX5_USBOTHER_REGS_OFFSET;
 
 	/* The clock for the USBH1 ULPI port will come externally from the PHY. */

arch/arm/mach-mx5/board-cpuimx51sd.c

@@ -157,6 +157,8 @@ static int initialize_otg_port(struct platform_device *pdev)
 	void __iomem *usbother_base;
 
 	usb_base = ioremap(MX51_OTG_BASE_ADDR, SZ_4K);
+	if (!usb_base)
+		return -ENOMEM;
 	usbother_base = usb_base + MX5_USBOTHER_REGS_OFFSET;
 
 	/* Set the PHY clock to 19.2MHz */
@@ -175,6 +177,8 @@ static int initialize_usbh1_port(struct platform_device *pdev)
 	void __iomem *usbother_base;
 
 	usb_base = ioremap(MX51_OTG_BASE_ADDR, SZ_4K);
+	if (!usb_base)
+		return -ENOMEM;
 	usbother_base = usb_base + MX5_USBOTHER_REGS_OFFSET;
 
 	/* The clock for the USBH1 ULPI port will come from the PHY. */

arch/arm/mach-mx5/board-mx51_babbage.c

@@ -262,6 +262,8 @@ static int initialize_otg_port(struct platform_device *pdev)
 	void __iomem *usbother_base;
 
 	usb_base = ioremap(MX51_OTG_BASE_ADDR, SZ_4K);
+	if (!usb_base)
+		return -ENOMEM;
 	usbother_base = usb_base + MX5_USBOTHER_REGS_OFFSET;
 
 	/* Set the PHY clock to 19.2MHz */
@@ -280,6 +282,8 @@ static int initialize_usbh1_port(struct platform_device *pdev)
 	void __iomem *usbother_base;
 
 	usb_base = ioremap(MX51_OTG_BASE_ADDR, SZ_4K);
+	if (!usb_base)
+		return -ENOMEM;
 	usbother_base = usb_base + MX5_USBOTHER_REGS_OFFSET;
 
 	/* The clock for the USBH1 ULPI port will come externally from the PHY. */

arch/arm/mach-mx5/board-mx51_efikamx.c

@@ -148,6 +148,8 @@ static int initialize_otg_port(struct platform_device *pdev)
 	void __iomem *usb_base;
 	void __iomem *usbother_base;
 	usb_base = ioremap(MX51_OTG_BASE_ADDR, SZ_4K);
+	if (!usb_base)
+		return -ENOMEM;
 	usbother_base = (void __iomem *)(usb_base + MX5_USBOTHER_REGS_OFFSET);
 
 	/* Set the PHY clock to 19.2MHz */

arch/arm/plat-mxc/ehci.c

@@ -254,6 +254,10 @@ int mxc_initialize_usb_hw(int port, unsigned int flags)
 		int ret = 0;
 
 		usb_base = ioremap(MX51_OTG_BASE_ADDR, SZ_4K);
+		if (!usb_base) {
+			printk(KERN_ERR "%s(): ioremap failed\n", __func__);
+			return -ENOMEM;
+		}
 
 		switch (port) {
 		case 0:	/* OTG port */