Re: [PATCH] scsi: osd_uld: fix mismerge

From: Stephen Rothwell
Date: Wed Apr 19 2017 - 19:26:27 EST


Hi Arnd,

On Wed, 19 Apr 2017 19:44:01 +0200 Arnd Bergmann <arnd@xxxxxxxx> wrote:
>
> A mismerge between two branches in linux-next reintroduced a warning that was
> previously resolved:
>
> drivers/scsi/osd/osd_uld.c: In function 'osd_probe':
> drivers/scsi/osd/osd_uld.c:457:2: error: ignoring return value of 'scsi_device_get', declared with attribute warn_unused_result [-Werror=unused-result]
>
> The original fix had more complex error unrolling, but as far as I
> can tell, this simpler version is now sufficient.
>
> Fixes: c02465fa13b6 ("scsi: osd_uld: Check scsi_device_get() return value")
> Fixes: ac1ddc584e98 ("scsi: utilize new cdev_device_add helper function")
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
> ---
> drivers/scsi/osd/osd_uld.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/scsi/osd/osd_uld.c b/drivers/scsi/osd/osd_uld.c
> index 8b9941a5687a..0e56f1eb05dc 100644
> --- a/drivers/scsi/osd/osd_uld.c
> +++ b/drivers/scsi/osd/osd_uld.c
> @@ -454,7 +454,8 @@ static int osd_probe(struct device *dev)
> /* hold one more reference to the scsi_device that will get released
> * in __release, in case a logout is happening while fs is mounted
> */
> - scsi_device_get(scsi_device);
> + if (scsi_device_get(scsi_device))
> + goto err_retract_minor;
> osd_dev_init(&oud->od, scsi_device);
>
> /* allocate a disk and set it up */

I will add this as a merge fix patch for the merge of the char-misc and
scsi trees today. Someone needs to let Linus know when these trees are
merged.

--
Cheers,
Stephen Rothwell