From: Oliver Neukum <oneukum@suse.com>
To: Haowen Tu <tuhaowen@uniontech.com>, rafael@kernel.org
Cc: lenb@kernel.org, pavel@kernel.org, linux-pm@vger.kernel.org,
laurent.pinchart@ideasonboard.com, hansg@kernel.org,
mchehab@kernel.org, linux-media@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/2] media: uvcvideo: skip resume when writing hibernation image
Date: Tue, 28 Apr 2026 10:36:04 +0200 [thread overview]
Message-ID: <937aca8d-805b-418e-a2ed-58c1e38f45e7@suse.com> (raw)
In-Reply-To: <20260428080513.1833515-3-tuhaowen@uniontech.com>
Hi,
On 28.04.26 10:05, Haowen Tu wrote:
> Skipping the THAW resume is safe: stream->frozen remains 1 (set during
> the earlier FREEZE suspend), the device is powered off immediately after
> swsusp_write() with no intervening suspend, and the subsequent
> PMSG_RESTORE resume on the restored kernel calls uvc_video_resume()
> with pm_hibernation_storing_image() returning false, performing the full
> reinitialization as normal.
>
What happens if writing out the image fails?
Regards
Oliver
next prev parent reply other threads:[~2026-04-28 8:36 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-28 8:05 [PATCH 0/2] PM: hibernate: add helper to detect image-write phase Haowen Tu
2026-04-28 8:05 ` [PATCH 1/2] PM: hibernate: add pm_hibernation_storing_image() helper Haowen Tu
2026-04-28 8:05 ` [PATCH 2/2] media: uvcvideo: skip resume when writing hibernation image Haowen Tu
2026-04-28 8:36 ` Oliver Neukum [this message]
2026-04-28 8:58 ` Haowen Tu
2026-04-28 9:13 ` Laurent Pinchart
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