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>

5 files changed, 18 insertions, 0 deletions

diff --git a/arch/arm/mach-mx5/board-cpuimx51.c b/arch/arm/mach-mx5/board-cpuimx51.c
index 6ab002d08a56..125a1961fd8c 100644
--- a/arch/arm/mach-mx5/board-cpuimx51.c
+++ b/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. */
diff --git a/arch/arm/mach-mx5/board-cpuimx51sd.c b/arch/arm/mach-mx5/board-cpuimx51sd.c
index 8e71c19b9019..7e8fb82d22fc 100644
--- a/arch/arm/mach-mx5/board-cpuimx51sd.c
+++ b/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. */
diff --git a/arch/arm/mach-mx5/board-mx51_babbage.c b/arch/arm/mach-mx5/board-mx51_babbage.c
index a896f84895ad..368a315e9ace 100644
--- a/arch/arm/mach-mx5/board-mx51_babbage.c
+++ b/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. */
diff --git a/arch/arm/mach-mx5/board-mx51_efikamx.c b/arch/arm/mach-mx5/board-mx51_efikamx.c
index 5ab21a0036c1..94e7818c5060 100644
--- a/arch/arm/mach-mx5/board-mx51_efikamx.c
+++ b/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 */
diff --git a/arch/arm/plat-mxc/ehci.c b/arch/arm/plat-mxc/ehci.c
index c1a7146dad96..d59f5feb3c54 100644
--- a/arch/arm/plat-mxc/ehci.c
+++ b/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 */