drm/udl: fix control-message timeout
authorJohan Hovold <johan@kernel.org>
Mon, 25 Oct 2021 11:53:53 +0000 (13:53 +0200)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Fri, 5 Nov 2021 10:15:14 +0000 (11:15 +0100)
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
drivers/gpu/drm/udl/udl_connector.c

index 3750fd2..930574a 100644 (file)
@@ -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);