6.12-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dave Stevenson <dave.stevenson@xxxxxxxxxxxxxxx>
[ Upstream commit cf1c87d978d47339a39bfa7a6133ecd3f8f87525 ]
Commit 52efe364d196 ("drm/vc4: hvs: Don't write gamma luts on 2711")
added a return path to vc4_hvs_lut_load that had called
drm_dev_enter, but not drm_dev_exit.
Ensure we call drm_dev_exit.
Fixes: 52efe364d196 ("drm/vc4: hvs: Don't write gamma luts on 2711")
Reported-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
Closes: https://lore.kernel.org/dri-devel/37051126-3921-4afe-a936-5f828bff5752@xxxxxxxxxxx/
Tested-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
Reviewed-by: Maíra Canal <mcanal@xxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20241008-drm-vc4-fixes-v1-1-9d0396ca9f42@xxxxxxxxxxxxxxx
Signed-off-by: Dave Stevenson <dave.stevenson@xxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/gpu/drm/vc4/vc4_hvs.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/vc4/vc4_hvs.c b/drivers/gpu/drm/vc4/vc4_hvs.c
index 3787c070d15e3..15e4c888c4afd 100644
--- a/drivers/gpu/drm/vc4/vc4_hvs.c
+++ b/drivers/gpu/drm/vc4/vc4_hvs.c
@@ -225,7 +225,7 @@ static void vc4_hvs_lut_load(struct vc4_hvs *hvs,
return;
if (hvs->vc4->gen == VC4_GEN_4)
- return;
+ goto exit;
/* The LUT memory is laid out with each HVS channel in order,
* each of which takes 256 writes for R, 256 for G, then 256
@@ -242,6 +242,7 @@ static void vc4_hvs_lut_load(struct vc4_hvs *hvs,
for (i = 0; i < crtc->gamma_size; i++)
HVS_WRITE(SCALER_GAMDATA, vc4_crtc->lut_b[i]);
+exit:
drm_dev_exit(idx);
}
--
2.43.0
