diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-07-16 09:09:24 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-07-16 09:09:24 +0200 |
| commit | 500f0716b5f7fd6b0ff3d045588c7588ce2eee1d (patch) | |
| tree | 05cfa2e77069af443f06bcfbf327f9aa2050eec7 /drivers/gpu/drm/udl | |
| parent | 4eb44f69e77141992e305d9e75e021b196071cdd (diff) | |
| parent | 9d3cce1e8b8561fed5f383d22a4d6949db4eadbe (diff) | |
Merge 4.18-rc5 into usb-next
We need the USB fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu/drm/udl')
| -rw-r--r-- | drivers/gpu/drm/udl/udl_fb.c | 5 | ||||
| -rw-r--r-- | drivers/gpu/drm/udl/udl_transfer.c | 11 |
2 files changed, 11 insertions, 5 deletions
diff --git a/drivers/gpu/drm/udl/udl_fb.c b/drivers/gpu/drm/udl/udl_fb.c index 2ebdc6d5a76e..d5583190f3e4 100644 --- a/drivers/gpu/drm/udl/udl_fb.c +++ b/drivers/gpu/drm/udl/udl_fb.c @@ -137,7 +137,10 @@ int udl_handle_damage(struct udl_framebuffer *fb, int x, int y, if (cmd > (char *) urb->transfer_buffer) { /* Send partial buffer remaining before exiting */ - int len = cmd - (char *) urb->transfer_buffer; + int len; + if (cmd < (char *) urb->transfer_buffer + urb->transfer_buffer_length) + *cmd++ = 0xAF; + len = cmd - (char *) urb->transfer_buffer; ret = udl_submit_urb(dev, urb, len); bytes_sent += len; } else diff --git a/drivers/gpu/drm/udl/udl_transfer.c b/drivers/gpu/drm/udl/udl_transfer.c index 0c87b1ac6b68..b992644c17e6 100644 --- a/drivers/gpu/drm/udl/udl_transfer.c +++ b/drivers/gpu/drm/udl/udl_transfer.c @@ -153,11 +153,11 @@ static void udl_compress_hline16( raw_pixels_count_byte = cmd++; /* we'll know this later */ raw_pixel_start = pixel; - cmd_pixel_end = pixel + (min(MAX_CMD_PIXELS + 1, - min((int)(pixel_end - pixel) / bpp, - (int)(cmd_buffer_end - cmd) / 2))) * bpp; + cmd_pixel_end = pixel + min3(MAX_CMD_PIXELS + 1UL, + (unsigned long)(pixel_end - pixel) / bpp, + (unsigned long)(cmd_buffer_end - 1 - cmd) / 2) * bpp; - prefetch_range((void *) pixel, (cmd_pixel_end - pixel) * bpp); + prefetch_range((void *) pixel, cmd_pixel_end - pixel); pixel_val16 = get_pixel_val16(pixel, bpp); while (pixel < cmd_pixel_end) { @@ -193,6 +193,9 @@ static void udl_compress_hline16( if (pixel > raw_pixel_start) { /* finalize last RAW span */ *raw_pixels_count_byte = ((pixel-raw_pixel_start) / bpp) & 0xFF; + } else { + /* undo unused byte */ + cmd--; } *cmd_pixels_count_byte = ((pixel - cmd_pixel_start) / bpp) & 0xFF; |