diff options
| author | Ben Dooks <ben-linux@fluff.org> | 2005-10-18 07:51:34 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2005-10-18 07:51:34 +0100 |
| commit | c086f282c01d7e5a887c3f7b190520538267f12e (patch) | |
| tree | 242684c30b3bcd8fd15046af94aa3c7874521690 | |
| parent | 39ca371c45b04cd50d0974030ae051906fc516b6 (diff) | |
| download | linux-c086f282c01d7e5a887c3f7b190520538267f12e.tar.bz2 | |
[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>
| -rw-r--r-- | arch/arm/mach-s3c2410/clock.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/arm/mach-s3c2410/clock.c b/arch/arm/mach-s3c2410/clock.c index f59608268751..8b3d5dc35de5 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); |