diff options
| author | Mark Brown <broonie@kernel.org> | 2018-07-13 13:10:58 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-07-13 13:10:58 +0100 |
| commit | 254f31e8dd400454cc4ee6cd5498cbf7962a894b (patch) | |
| tree | 226888e366759e7904e36ec3893667529a7740ec /drivers/gpu/drm/udl | |
| parent | c3af9109098d6a6240df6f9897bb4984dce02eaa (diff) | |
| parent | 060744011e93679f03932f050619744be895b772 (diff) | |
Merge tag 'v4.9.112' into linux-linaro-lsk-v4.9
This is the 4.9.112 stable release
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 67ea2ce03a23..39d0fdcb17d2 100644 --- a/drivers/gpu/drm/udl/udl_fb.c +++ b/drivers/gpu/drm/udl/udl_fb.c @@ -136,7 +136,10 @@ 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 917dcb978c2c..9259a2f8bf3a 100644 --- a/drivers/gpu/drm/udl/udl_transfer.c +++ b/drivers/gpu/drm/udl/udl_transfer.c @@ -152,11 +152,11 @@ 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) { @@ -192,6 +192,9 @@ 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; |