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core: platform: add warning if driver has no owner 

Commit 9447057eaf ("platform_device: use a macro instead of
platform_driver_register") introduced a codepath which could result into
drivers having no owner. This went unnoticed for months, so add a
warning in case this happens again somewhere else somewhen.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Wolfram Sang 2014-10-28 17:40:40 +01:00 committed by Greg Kroah-Hartman
parent a8a93c6f99
commit 161d698109
1 changed files with 3 additions and 0 deletions
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3
drivers/base/driver.c
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@ -151,6 +151,9 @@ int driver_register(struct device_driver *drv)
BUG_ON(!drv->bus->p);
if (!drv->owner)
printk(KERN_WARNING "Driver '%s' needs an owner", drv->name);
if ((drv->bus->probe && drv->probe) ||
(drv->bus->remove && drv->remove) ||
(drv->bus->shutdown && drv->shutdown))