On 12/14/2017 11:03 PM, Bart Van Assche wrote: > On Tue, 2017-12-12 at 09:57 +0100, Hannes Reinecke wrote: >> sdev->sdev_gendev.parent = get_device(&starget->dev); >> + if (!sdev->sdev_gendev.parent) { >> + kfree(sdev); >> + return NULL; >> + } > > Are you sure that get_device() can return NULL? > If it can't return NULL, why bother having a return value at all? And this is not the only place where get_device() is checked for a NULL return value. We _really_ need to come up with a consistent view here. If get_device() can never return NULL I would strongly argue for making it a void function. If it _can_ return NULL we need to check for it. Either way I don't mind; but please stay consistent. Cheers, Hannes -- Dr. Hannes Reinecke Teamlead Storage & Networking hare@xxxxxxx +49 911 74053 688 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton HRB 21284 (AG Nürnberg)