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 14:38:20 +0800 |
| commit | 4180f1cfce522201db868eec8c6c459d12a0e34d (patch) | |
| tree | df96f663225e629dda213d65538694fca18ae61b /drivers/video | |
| parent | e2207c48a8d77d09014ca57c733aea36b1db37ec (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>
(cherry picked from commit 2d16313abad65330cb03d365d307f2d0caafe955)
Diffstat (limited to 'drivers/video')
| -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 97238d82742b..6434d82d0941 100644 --- a/drivers/video/mxc/mxc_ipuv3_fb.c +++ b/drivers/video/mxc/mxc_ipuv3_fb.c @@ -1956,7 +1956,7 @@ 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( @@ -2048,7 +2048,7 @@ 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); |