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Message-Id: <20211124115657.665328444@linuxfoundation.org>
Date: Wed, 24 Nov 2021 12:58:43 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Johan Hovold <johan@...nel.org>,
Daniel Vetter <daniel.vetter@...ll.ch>
Subject: [PATCH 5.4 087/100] drm/udl: fix control-message timeout
From: Johan Hovold <johan@...nel.org>
commit 5591c8f79db1729d9c5ac7f5b4d3a5c26e262d93 upstream.
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@...r.kernel.org # 3.4
Signed-off-by: Johan Hovold <johan@...nel.org>
Signed-off-by: Daniel Vetter <daniel.vetter@...ll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20211025115353.5089-1-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
drivers/gpu/drm/udl/udl_connector.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/udl/udl_connector.c
+++ b/drivers/gpu/drm/udl/udl_connector.c
@@ -29,7 +29,7 @@ static int udl_get_edid_block(void *data
ret = usb_control_msg(udl->udev,
usb_rcvctrlpipe(udl->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);
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