From: Helen Koike <helen.koike@collabora.com>
To: linux-media@vger.kernel.org
Cc: mchehab@kernel.org, linux-kernel@vger.kernel.org,
tfiga@chromium.org, linux-rockchip@lists.infradead.org,
hans.verkuil@cisco.com, kernel@collabora.com,
Helen Koike <helen.koike@collabora.com>
Subject: [PATCH v2 1/2] media: staging: rkisp1: cap: fix return values from pm functions
Date: Mon, 16 Mar 2020 18:00:43 -0300 [thread overview]
Message-ID: <20200316210044.595312-2-helen.koike@collabora.com> (raw)
In-Reply-To: <20200316210044.595312-1-helen.koike@collabora.com>
If no errors occurs, pm functions return usage counters, so they can
return positive numbers.
This happens when streaming from multiple capture devices (mainpath and
selfpath).
Fix simultaneous streaming from mainpath and selfpath by not failing
when pm usage counters returns a positive number.
Signed-off-by: Helen Koike <helen.koike@collabora.com>
---
Changes in v2:
- Rebased on media/master
drivers/staging/media/rkisp1/rkisp1-capture.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/staging/media/rkisp1/rkisp1-capture.c b/drivers/staging/media/rkisp1/rkisp1-capture.c
index 24fe6a7888aa..967bd05b4507 100644
--- a/drivers/staging/media/rkisp1/rkisp1-capture.c
+++ b/drivers/staging/media/rkisp1/rkisp1-capture.c
@@ -939,7 +939,7 @@ static void rkisp1_vb2_stop_streaming(struct vb2_queue *queue)
v4l2_pipeline_pm_put(&node->vdev.entity);
ret = pm_runtime_put(rkisp1->dev);
- if (ret)
+ if (ret < 0)
dev_err(rkisp1->dev, "power down failed error:%d\n", ret);
rkisp1_dummy_buf_destroy(cap);
@@ -992,7 +992,7 @@ rkisp1_vb2_start_streaming(struct vb2_queue *queue, unsigned int count)
goto err_ret_buffers;
ret = pm_runtime_get_sync(cap->rkisp1->dev);
- if (ret) {
+ if (ret < 0) {
dev_err(cap->rkisp1->dev, "power up failed %d\n", ret);
goto err_destroy_dummy;
}
--
2.25.0
next prev parent reply other threads:[~2020-03-16 21:01 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-16 21:00 [PATCH v2 0/2] media: staging: rkisp1: allow simultaneous streaming from multiple capture devices Helen Koike
2020-03-16 21:00 ` Helen Koike [this message]
2020-03-16 21:00 ` [PATCH v2 2/2] media: staging: rkisp1: cap: serialize start/stop stream Helen Koike
2020-06-10 16:37 ` [PATCH v2 0/2] media: staging: rkisp1: allow simultaneous streaming from multiple capture devices Tomasz Figa
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