Commit c086f282 authored by Ben Dooks's avatar Ben Dooks Committed by Russell King
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[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: default avatarBen Dooks <ben-linux@fluff.org>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 39ca371c
...@@ -98,7 +98,10 @@ struct clk *clk_get(struct device *dev, const char *id) ...@@ -98,7 +98,10 @@ struct clk *clk_get(struct device *dev, const char *id)
struct clk *clk = ERR_PTR(-ENOENT); struct clk *clk = ERR_PTR(-ENOENT);
int idno; 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); down(&clocks_sem);
......
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