From: Johan Hovold <johan@kernel.org>
To: Dave Airlie <airlied@redhat.com>
Cc: Sean Paul <sean@poorly.run>,
Thomas Zimmermann <tzimmermann@suse.de>,
Daniel Vetter <daniel@ffwll.ch>,
dri-devel@lists.freedesktop.org, linux-usb@vger.kernel.org,
linux-kernel@vger.kernel.org, Johan Hovold <johan@kernel.org>,
stable@vger.kernel.org
Subject: [PATCH] drm/udl: fix control-message timeout
Date: Mon, 25 Oct 2021 13:53:53 +0200 [thread overview]
Message-ID: <20211025115353.5089-1-johan@kernel.org> (raw)
USB control-message timeouts are specified in milliseconds and should
specifically not vary with CONFIG_HZ.
Fixes: 5320918b9a87 ("drm/udl: initial UDL driver (v4)")
Cc: stable@vger.kernel.org # 3.4
Signed-off-by: Johan Hovold <johan@kernel.org>
---
drivers/gpu/drm/udl/udl_connector.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/udl/udl_connector.c b/drivers/gpu/drm/udl/udl_connector.c
index 3750fd216131..930574ad2bca 100644
--- a/drivers/gpu/drm/udl/udl_connector.c
+++ b/drivers/gpu/drm/udl/udl_connector.c
@@ -30,7 +30,7 @@ static int udl_get_edid_block(void *data, u8 *buf, unsigned int block,
int bval = (i + block * EDID_LENGTH) << 8;
ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
0x02, (0x80 | (0x02 << 5)), bval,
- 0xA1, read_buff, 2, HZ);
+ 0xA1, read_buff, 2, 1000);
if (ret < 1) {
DRM_ERROR("Read EDID byte %d failed err %x\n", i, ret);
kfree(read_buff);
--
2.32.0
next reply other threads:[~2021-10-25 11:54 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-25 11:53 Johan Hovold [this message]
2021-11-05 10:15 ` [PATCH] drm/udl: fix control-message timeout Daniel Vetter
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