drm/udl: fix control-message timeout

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@vger.kernel.org      # 3.4
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20211025115353.5089-1-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/gpu/drm/udl/udl_connector.c b/drivers/gpu/drm/udl/udl_connector.c
index cdc1c42..aac41a8 100644 (file)
--- 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,
                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);