linux-kernel - [PATCH] media: amphion: wake up when error occurs

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Message-Id: <20220429085757.18443-1-ming.qian@nxp.com>
Date:   Fri, 29 Apr 2022 16:57:57 +0800
From:   Ming Qian <ming.qian@....com>
To:     mchehab@...nel.org, hverkuil-cisco@...all.nl
Cc:     shawnguo@...nel.org, robh+dt@...nel.org, s.hauer@...gutronix.de,
        kernel@...gutronix.de, festevam@...il.com, linux-imx@....com,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH] media: amphion: wake up when error occurs

when error occurs, driver set error flag,
and driver need to wake up the poll wait

Signed-off-by: Ming Qian <ming.qian@....com>
---
 drivers/media/platform/amphion/vpu_v4l2.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/media/platform/amphion/vpu_v4l2.c b/drivers/media/platform/amphion/vpu_v4l2.c
index 49747e0ee96e..a5de72f644a1 100644
--- a/drivers/media/platform/amphion/vpu_v4l2.c
+++ b/drivers/media/platform/amphion/vpu_v4l2.c
@@ -73,10 +73,10 @@ void vpu_v4l2_set_error(struct vpu_inst *inst)
 	if (inst->fh.m2m_ctx) {
 		src_q = v4l2_m2m_get_src_vq(inst->fh.m2m_ctx);
 		dst_q = v4l2_m2m_get_dst_vq(inst->fh.m2m_ctx);
-		if (src_q)
-			src_q->error = 1;
-		if (dst_q)
-			dst_q->error = 1;
+		src_q->error = 1;
+		dst_q->error = 1;
+		wake_up(&src_q->done_wq);
+		wake_up(&dst_q->done_wq);
 	}
 	vpu_inst_unlock(inst);
 }
-- 
2.36.0