From: Mukesh Ojha <mojha@codeaurora.org>
To: Kangjie Lu <kjlu@umn.edu>
Cc: pakki001@umn.edu, Eric Anholt <eric@anholt.net>,
David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] gpu: v3d: fix a missing check of pm_runtime_get_sync
Date: Wed, 27 Mar 2019 20:39:22 +0530 [thread overview]
Message-ID: <a2cf16d9-a4a0-6c64-4733-6acaf413af56@codeaurora.org> (raw)
In-Reply-To: <20190324231602.2436-1-kjlu@umn.edu>
On 3/25/2019 4:46 AM, Kangjie Lu wrote:
> pm_runtime_get_sync could fail and thus deserves a check.
>
> The patch adds such a check and return its error code upstream
> if it indeed failed.
>
> Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>
-Mukesh
> ---
> drivers/gpu/drm/v3d/v3d_drv.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/gpu/drm/v3d/v3d_drv.c b/drivers/gpu/drm/v3d/v3d_drv.c
> index f0afcec72c34..99daad11fac2 100644
> --- a/drivers/gpu/drm/v3d/v3d_drv.c
> +++ b/drivers/gpu/drm/v3d/v3d_drv.c
> @@ -101,6 +101,8 @@ static int v3d_get_param_ioctl(struct drm_device *dev, void *data,
> return -EINVAL;
>
> ret = pm_runtime_get_sync(v3d->dev);
> + if (ret < 0)
> + return ret;
> if (args->param >= DRM_V3D_PARAM_V3D_CORE0_IDENT0 &&
> args->param <= DRM_V3D_PARAM_V3D_CORE0_IDENT2) {
> args->value = V3D_CORE_READ(0, offset);
next prev parent reply other threads:[~2019-03-27 15:09 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-24 23:16 [PATCH] gpu: v3d: fix a missing check of pm_runtime_get_sync Kangjie Lu
2019-03-27 15:09 ` Mukesh Ojha [this message]
2019-04-01 17:49 ` Eric Anholt
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