Re: [PATCH] drm/udl: fix control-message timeout

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On Mon, Oct 25, 2021 at 01:53:53PM +0200, Johan Hovold wrote:
> 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@xxxxxxxxxxxxxxx      # 3.4
> Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>

Thanks for patch, queued up for the merge window.
-Daniel

> ---
>  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
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch



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