From: Anshuman Gupta <anshuman.gupta@intel.com>
To: Kamati Srinivas <srinivasx.k@intel.com>
Cc: "intel-gfx@lists.freedesktop.org"
<intel-gfx@lists.freedesktop.org>,
"Pandey, Hariom" <hariom.pandey@intel.com>,
"seanpaul@chromium.org" <seanpaul@chromium.org>
Subject: Re: [Intel-gfx] drm/i915: Acquire connector reference before prop_work
Date: Wed, 28 Oct 2020 14:34:39 +0530 [thread overview]
Message-ID: <20201028090439.GJ29526@intel.com> (raw)
In-Reply-To: <20201027103335.3725-1-srinivasx.k@intel.com>
On 2020-10-27 at 16:03:35 +0530, Kamati Srinivas wrote:
> From: Srinivas Kamati <srinivasx.k@intel.com>
>
> "Content protection type change" igt test results in kernel
> taint. Everytime after prop_work is done we are also
> giving up connector reference, which is resulting in ref
> count underrun.
>
> Before scheduling prop_work acquire connector reference.
I has been alreayd taken care at
https://patchwork.freedesktop.org/patch/397215/?series=82998&rev=2
>
> Cc: Sean Paul <seanpaul@chromium.org>
> Cc: Ramalingam C <ramalingam.c@intel.com>
> Signed-off-by: Srinivas Kamati <srinivasx.k@intel.com>
> ---
> drivers/gpu/drm/i915/display/intel_hdcp.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c
> index b2a4bbcfdcd2..beedd672b21e 100644
> --- a/drivers/gpu/drm/i915/display/intel_hdcp.c
> +++ b/drivers/gpu/drm/i915/display/intel_hdcp.c
> @@ -2210,6 +2210,7 @@ void intel_hdcp_update_pipe(struct intel_atomic_state *state,
> if (content_protection_type_changed) {
> mutex_lock(&hdcp->mutex);
> hdcp->value = DRM_MODE_CONTENT_PROTECTION_DESIRED;
> + drm_connector_get(&connector->base);
> schedule_work(&hdcp->prop_work);
> mutex_unlock(&hdcp->mutex);
> }
> --
> 2.25.1
>
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
next prev parent reply other threads:[~2020-10-28 9:18 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-27 10:33 [Intel-gfx] drm/i915: Acquire connector reference before prop_work Kamati Srinivas
2020-10-28 1:05 ` [Intel-gfx] ✓ Fi.CI.BAT: success for " Patchwork
2020-10-28 4:08 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork
2020-10-28 9:04 ` Anshuman Gupta [this message]
2020-10-28 9:22 ` [Intel-gfx] " K, SrinivasX
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20201028090439.GJ29526@intel.com \
--to=anshuman.gupta@intel.com \
--cc=hariom.pandey@intel.com \
--cc=intel-gfx@lists.freedesktop.org \
--cc=seanpaul@chromium.org \
--cc=srinivasx.k@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.