[PATCH] plat-omap: check return value of ioremap()

[Ren Yu]

When ioremap() failed,return err

Signed-off-by: Ren Yu <renyu at nfschina.com>
---
 arch/arm/plat-omap/debug-leds.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm/plat-omap/debug-leds.c b/arch/arm/plat-omap/debug-leds.c
index 2b698d074874..bf5034e10f6e 100644
--- a/arch/arm/plat-omap/debug-leds.c
+++ b/arch/arm/plat-omap/debug-leds.c
@@ -109,6 +109,9 @@ static int fpga_probe(struct platform_device *pdev)
 		return -ENODEV;
 
 	fpga = ioremap(iomem->start, resource_size(iomem));
+	if (!fpga)
+		return -ENOMEM;
+
 	writew_relaxed(0xff, &fpga->leds);
 
 	for (i = 0; i < ARRAY_SIZE(dbg_leds); i++) {
-- 
2.25.1