+++ /dev/null
-From c24a6aef5b7ef24fb5c6f83ada015b06bcc3c665 Mon Sep 17 00:00:00 2001
-From: Dave Stevenson <dave.stevenson@raspberrypi.com>
-Date: Mon, 27 Jan 2020 10:22:44 +0000
-Subject: [PATCH] drm: Checking of the pitch is only valid for linear
- formats
-
-framebuffer_check was computing a minimum pitch value and ensuring
-that the provided value was greater than this.
-That check is only valid if the format is linear.
-
-Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
----
- drivers/gpu/drm/drm_framebuffer.c | 16 ++++++++++------
- 1 file changed, 10 insertions(+), 6 deletions(-)
-
---- a/drivers/gpu/drm/drm_framebuffer.c
-+++ b/drivers/gpu/drm/drm_framebuffer.c
-@@ -217,12 +217,16 @@ static int framebuffer_check(struct drm_
- if (min_pitch > UINT_MAX)
- return -ERANGE;
-
-- if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX)
-- return -ERANGE;
-+ if (r->modifier[i] == DRM_FORMAT_MOD_LINEAR) {
-+ if ((uint64_t)height * r->pitches[i] + r->offsets[i] >
-+ UINT_MAX)
-+ return -ERANGE;
-
-- if (block_size && r->pitches[i] < min_pitch) {
-- DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i);
-- return -EINVAL;
-+ if (block_size && r->pitches[i] < min_pitch) {
-+ DRM_DEBUG_KMS("bad pitch %u for plane %d\n",
-+ r->pitches[i], i);
-+ return -EINVAL;
-+ }
- }
-
- if (r->modifier[i] && !(r->flags & DRM_MODE_FB_MODIFIERS)) {