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authorGuennadi Liakhovetski <g.liakhovetski@gmx.de>2010-06-30 09:26:35 +0000
committerPaul Mundt <lethal@linux-sh.org>2010-08-04 16:03:02 +0900
commitdba6f385b83d7f19eb1d4df12f422bab945c7f10 (patch)
tree90dd9b477986bc568bc4445c7fbb0c9409a89451 /drivers/video/sh_mobile_lcdcfb.c
parent8a2b6beffc88b83089845d72eed2ed74eb5c9b1e (diff)
downloadop-kernel-dev-dba6f385b83d7f19eb1d4df12f422bab945c7f10.zip
op-kernel-dev-dba6f385b83d7f19eb1d4df12f422bab945c7f10.tar.gz
fbdev: sh-mobile-lcdc: fix potential Oops in SH-Mobile LCDC framebuffer driver
sh_mobile_lcdc_setup_clocks() can perform IO, therefore it has to be called after ioremap(). Also check return code of ioremap() and use resource_size() instead of open-coding it. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'drivers/video/sh_mobile_lcdcfb.c')
-rw-r--r--drivers/video/sh_mobile_lcdcfb.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c
index 12c451a..0c97509 100644
--- a/drivers/video/sh_mobile_lcdcfb.c
+++ b/drivers/video/sh_mobile_lcdcfb.c
@@ -1020,14 +1020,16 @@ static int __devinit sh_mobile_lcdc_probe(struct platform_device *pdev)
goto err1;
}
+ priv->base = ioremap_nocache(res->start, resource_size(res));
+ if (!priv->base)
+ goto err1;
+
error = sh_mobile_lcdc_setup_clocks(pdev, pdata->clock_source, priv);
if (error) {
dev_err(&pdev->dev, "unable to setup clocks\n");
goto err1;
}
- priv->base = ioremap_nocache(res->start, (res->end - res->start) + 1);
-
for (i = 0; i < j; i++) {
cfg = &priv->ch[i].cfg;
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