From: Ricardo Ribalda <ribalda@chromium.org>
To: Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Hans Verkuil <hverkuil-cisco@xs4all.nl>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
tfiga@chromium.org
Cc: Ricardo Ribalda <ribalda@chromium.org>
Subject: [PATCH 4/4] media: uvcvideo: Do not return positive errors in uvc_query_ctrl()
Date: Thu, 9 Sep 2021 17:00:46 +0200 [thread overview]
Message-ID: <20210909150046.57615-5-ribalda@chromium.org> (raw)
In-Reply-To: <20210909150046.57615-1-ribalda@chromium.org>
If the returned size of the query does not match the expected size or it
is zero, return -EPIPE instead of 0 or a positive value.
Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
---
drivers/media/usb/uvc/uvc_video.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/usb/uvc/uvc_video.c b/drivers/media/usb/uvc/uvc_video.c
index 8423941cfc95..01b99da5e191 100644
--- a/drivers/media/usb/uvc/uvc_video.c
+++ b/drivers/media/usb/uvc/uvc_video.c
@@ -83,7 +83,7 @@ int uvc_query_ctrl(struct uvc_device *dev, u8 query, u8 unit,
dev_err(&dev->udev->dev,
"Failed to query (%s) UVC control %u on unit %u: %d (exp. %u).\n",
uvc_query_name(query), cs, unit, ret, size);
- return ret;
+ return ret < 0 ? ret : -EPIPE;
}
/* reuse data[0] to request the error code. */
--
2.33.0.153.gba50c8fa24-goog
next prev parent reply other threads:[~2021-09-09 15:01 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-09 15:00 [PATCH 0/4] Follow-up patches for uvc v4l2-compliance Ricardo Ribalda
2021-09-09 15:00 ` [PATCH 1/4] media: uvcvideo: uvc_ctrl_is_accessible: check for INACTIVE Ricardo Ribalda
2021-09-09 15:00 ` [PATCH 2/4] media: uvcvideo: improve error logging in uvc_query_ctrl() Ricardo Ribalda
2021-09-09 15:00 ` [PATCH 3/4] media: uvcvideo: Return -EACCES for Wrong state error Ricardo Ribalda
2021-09-09 15:00 ` Ricardo Ribalda [this message]
2021-11-11 20:41 ` [PATCH 0/4] Follow-up patches for uvc v4l2-compliance James Hilliard
2021-11-11 20:52 ` Ricardo Ribalda
2021-11-11 21:22 ` James Hilliard
2021-11-11 21:27 ` Ricardo Ribalda
2021-11-11 22:04 ` James Hilliard
2021-11-12 10:09 ` Ricardo Ribalda
2021-11-12 10:45 ` Hans Verkuil
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