[PATCH 1/3] cxlflash: Avoid double free of character device

[Hannes Reinecke]

On 06/28/2017 07:14 PM, Matthew R. Ochs wrote:
> The device_unregister() service used when cleaning up the character
> device is already responsible for the internal state associated with
> the device upon successful creation. As the cxlflash driver does not
> obtain a second reference to the character device, the explicit call
> to put_device() is not required and can lead to an inconsistent sysfs
> among other issues as the reference is no longer valid after the first
> put_device() is performed.
> 
> Remove the unnecessary put_device() to remedy this issue.
> 
> Fixes: a834a36b57d9 ("scsi: cxlflash: Create character device to provide host management interface")
> Signed-off-by: Matthew R. Ochs <mrochs at linux.vnet.ibm.com>> ---
>  drivers/scsi/cxlflash/main.c | 1 -
>  1 file changed, 1 deletion(-)
> 
Reviewed-by: Hannes Reinecke <hare at suse.com>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		               zSeries & Storage
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