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path: root/drivers/gpu/drm/nouveau/dispnv50/wndw.c
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-rw-r--r--drivers/gpu/drm/nouveau/dispnv50/wndw.c17
1 files changed, 12 insertions, 5 deletions
diff --git a/drivers/gpu/drm/nouveau/dispnv50/wndw.c b/drivers/gpu/drm/nouveau/dispnv50/wndw.c
index 5193b6257061..890315291b01 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/wndw.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/wndw.c
@@ -318,7 +318,7 @@ nv50_wndw_atomic_check_acquire(struct nv50_wndw *wndw, bool modeset,
return wndw->func->acquire(wndw, asyw, asyh);
}
-static void
+static int
nv50_wndw_atomic_check_lut(struct nv50_wndw *wndw,
struct nv50_wndw_atom *armw,
struct nv50_wndw_atom *asyw,
@@ -340,7 +340,7 @@ nv50_wndw_atomic_check_lut(struct nv50_wndw *wndw,
*/
if (!(ilut = asyh->state.gamma_lut)) {
asyw->visible = false;
- return;
+ return 0;
}
if (wndw->func->ilut)
@@ -359,7 +359,10 @@ nv50_wndw_atomic_check_lut(struct nv50_wndw *wndw,
/* Recalculate LUT state. */
memset(&asyw->xlut, 0x00, sizeof(asyw->xlut));
if ((asyw->ilut = wndw->func->ilut ? ilut : NULL)) {
- wndw->func->ilut(wndw, asyw);
+ if (!wndw->func->ilut(wndw, asyw, drm_color_lut_size(ilut))) {
+ DRM_DEBUG_KMS("Invalid ilut\n");
+ return -EINVAL;
+ }
asyw->xlut.handle = wndw->wndw.vram.handle;
asyw->xlut.i.buffer = !asyw->xlut.i.buffer;
asyw->set.xlut = true;
@@ -384,6 +387,7 @@ nv50_wndw_atomic_check_lut(struct nv50_wndw *wndw,
/* Can't do an immediate flip while changing the LUT. */
asyh->state.async_flip = false;
+ return 0;
}
static int
@@ -424,8 +428,11 @@ nv50_wndw_atomic_check(struct drm_plane *plane, struct drm_plane_state *state)
(!armw->visible ||
asyh->state.color_mgmt_changed ||
asyw->state.fb->format->format !=
- armw->state.fb->format->format))
- nv50_wndw_atomic_check_lut(wndw, armw, asyw, asyh);
+ armw->state.fb->format->format)) {
+ ret = nv50_wndw_atomic_check_lut(wndw, armw, asyw, asyh);
+ if (ret)
+ return ret;
+ }
/* Calculate new window state. */
if (asyw->visible) {