diff options
| author | Liu Ying <Ying.Liu@freescale.com> | 2012-02-23 13:51:03 +0800 |
|---|---|---|
| committer | Liu Ying <Ying.Liu@freescale.com> | 2012-02-23 14:02:46 +0800 |
| commit | 2d16313abad65330cb03d365d307f2d0caafe955 (patch) | |
| tree | 0adbb665cb00f91493b880e0fedab1610b01f02b | |
| parent | b29df373e547c83f9b3bcfd9a98016f462fa9ec2 (diff) | |
ENGR00175222-2 IPUv3 fb:Check mem resource start address
This patch checks memory resource start address before
using the memory resource.
Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
| -rw-r--r-- | drivers/video/mxc/mxc_ipuv3_fb.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/video/mxc/mxc_ipuv3_fb.c b/drivers/video/mxc/mxc_ipuv3_fb.c index 65e3f5f61157..8c45a534cbfb 100644 --- a/drivers/video/mxc/mxc_ipuv3_fb.c +++ b/drivers/video/mxc/mxc_ipuv3_fb.c @@ -1957,7 +1957,7 @@ static int mxcfb_setup_overlay(struct platform_device *pdev, ovfbi->var.xres = 240; ovfbi->var.yres = 320; - if (res && res->end) { + if (res && res->start && res->end) { ovfbi->fix.smem_len = res->end - res->start + 1; ovfbi->fix.smem_start = res->start; ovfbi->screen_base = ioremap( @@ -2050,7 +2050,7 @@ static int mxcfb_probe(struct platform_device *pdev) } res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (res && res->end) { + if (res && res->start && res->end) { fbi->fix.smem_len = res->end - res->start + 1; fbi->fix.smem_start = res->start; fbi->screen_base = ioremap(fbi->fix.smem_start, fbi->fix.smem_len); |