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driver core: dev_get_drvdata: Don't check for NULL dev
There is no point in calling dev_get_drvdata without a valid device. So checking for dev == NULL is pointless. If such a check is ever needed - which I doubt - the driver should do it before calling dev_get_drvdata. We were returning NULL if dev was NULL, which the caller certainly did not expect anyway, so that was only delaying the crash if the caller is not paying attention. Signed-off-by: Jean Delvare <jdelvare@suse.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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1 changed files with 1 additions and 3 deletions
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@ -594,9 +594,7 @@ void driver_detach(struct device_driver *drv)
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*/
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void *dev_get_drvdata(const struct device *dev)
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{
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if (dev)
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return dev->driver_data;
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return NULL;
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return dev->driver_data;
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}
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EXPORT_SYMBOL(dev_get_drvdata);
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