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driver core: let dev_set_drvdata return int instead of void as it can fail

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Before commit

	b402843 (Driver core: move dev_get/set_drvdata to drivers/base/dd.c)

calling dev_set_drvdata with dev=NULL was an unchecked error. After some
discussion about what to return in this case removing the check (and so
producing a null pointer exception) seems fine.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Uwe Kleine-König
2011-04-20 09:44:46 +02:00
committed by Greg Kroah-Hartman
parent 4a03d6f7c8
commit c870508240
2 changed files with 4 additions and 5 deletions
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include/linux/device.h
+1 -1
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@@ -557,7 +557,7 @@ extern int device_move(struct device *dev, struct device *new_parent,
extern const char *device_get_devnode(struct device *dev,
mode_t *mode, const char **tmp);
extern void *dev_get_drvdata(const struct device *dev);
extern void dev_set_drvdata(struct device *dev, void *data);
extern int dev_set_drvdata(struct device *dev, void *data);
/*
* Root device objects for grouping under /sys/devices