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authorBen Dooks <ben-linux@fluff.org>2005-10-18 07:51:34 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2005-10-18 07:51:34 +0100
commitc086f282c01d7e5a887c3f7b190520538267f12e (patch)
tree242684c30b3bcd8fd15046af94aa3c7874521690 /arch
parent39ca371c45b04cd50d0974030ae051906fc516b6 (diff)
downloadlinux-2.6.34-ux500-c086f282c01d7e5a887c3f7b190520538267f12e.tar.gz
[ARM] 3018/1: S3C2410 - check de-referenced device is really a platform device
Patch from Ben Dooks Check that the device we are looking at is really a platform device before trying to cast it to one to find out the platform bus number. Thanks to RMK for pointing this out. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-s3c2410/clock.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/arm/mach-s3c2410/clock.c b/arch/arm/mach-s3c2410/clock.c
index f5960826875..8b3d5dc35de 100644
--- a/arch/arm/mach-s3c2410/clock.c
+++ b/arch/arm/mach-s3c2410/clock.c
@@ -98,7 +98,10 @@ struct clk *clk_get(struct device *dev, const char *id)
struct clk *clk = ERR_PTR(-ENOENT);
int idno;
- idno = (dev == NULL) ? -1 : to_platform_device(dev)->id;
+ if (dev == NULL || dev->bus != &platform_bus_type)
+ idno = -1;
+ else
+ idno = to_platform_device(dev)->id;
down(&clocks_sem);