Re: [PATCH] Fix a memory leak in scsi_host_dev_release()

From: Bart Van Assche
Date: Fri Nov 20 2015 - 12:49:53 EST


On 11/20/2015 03:52 AM, Christoph Hellwig wrote:
the memory leak looks real, and your fix looks corret, but I still
don't like it.

I think it's reasonable for SCSI to assume that the final put_device
fully frees the struct device including the name pointer that is
assigned entirely behind the back of the caller.

So I think the fix for this probably should be in the driver core.

Hello Christoph,

Thanks for the feedback. However, I'm not sure this can be fixed by modifying the driver core. If scsi_host_remove() is not called the SCSI core doesn't call put_device(&shost->shost_dev). I will post a second version of this patch that ensures that the SCSI core always calls put_device(&shost->shost_dev).

Bart.
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