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jhovolddanvet
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drm/udl: fix control-message timeout
USB control-message timeouts are specified in milliseconds and should specifically not vary with CONFIG_HZ. Fixes: 5320918 ("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
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drivers/gpu/drm/udl/udl_connector.c

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -30,7 +30,7 @@ static int udl_get_edid_block(void *data, u8 *buf, unsigned int block,
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int bval = (i + block * EDID_LENGTH) << 8;
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ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
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0x02, (0x80 | (0x02 << 5)), bval,
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0xA1, read_buff, 2, HZ);
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0xA1, read_buff, 2, 1000);
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if (ret < 1) {
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DRM_ERROR("Read EDID byte %d failed err %x\n", i, ret);
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kfree(read_buff);

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