On 08/14/2012 07:11 AM, Alexander Holler wrote:
> Line 0 and 1 were both written to line 0 (on the display) and all
> subsequent
> lines had an offset of -1. The result was that the last line on the display
> was never overwritten by writes to /dev/fbN.
>
> Cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Alexander Holler <holler@xxxxxxxxxxxxx>
As Bernie agreed but didn't send me a pull request, I applied this one.
Though the formatting was screwed up and I had to fix it...
Best regards,
Florian Tobias Schandinat
> ---
> drivers/video/udlfb.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/video/udlfb.c b/drivers/video/udlfb.c
> index a159b63..85d8110 100644
> --- a/drivers/video/udlfb.c
> +++ b/drivers/video/udlfb.c
> @@ -647,7 +647,7 @@ static ssize_t dlfb_ops_write(struct fb_info *info,
> const char __user *buf,
> result = fb_sys_write(info, buf, count, ppos);
> if (result > 0) {
> - int start = max((int)(offset / info->fix.line_length) - 1, 0);
> + int start = max((int)(offset / info->fix.line_length), 0);
> int lines = min((u32)((result / info->fix.line_length) + 1),
> (u32)info->var.yres);
> -- 1.7.6.5
>
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