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>

1 files changed, 4 insertions, 0 deletions

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. */