6.10-stable review patch. If anyone has any objections, please let me know.
------------------
From: Barnabás Czémán <trabarni@xxxxxxxxx>
[ Upstream commit e42d518511871ae625b5ff699853a05af1ccccf7 ]
The irq_idx is unsigned so it cannot be lower than zero, better
to change the condition to check if it is equal with zero.
It could not cause any issue because a valid irq index starts from one.
Fixes: 5a9d50150c2c ("drm/msm/dpu: shift IRQ indices by 1")
Signed-off-by: Barnabás Czémán <trabarni@xxxxxxxxx>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Reviewed-by: Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx>
Patchwork: https://patchwork.freedesktop.org/patch/596853/
Link: https://lore.kernel.org/r/20240509-irq_wait-v2-1-b8b687b22cc4@xxxxxxxxx
Signed-off-by: Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx>
Signed-off-by: Rob Clark <robdclark@xxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
index 119f3ea50a7c6..cf7d769ab3b95 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
@@ -428,7 +428,7 @@ int dpu_encoder_helper_wait_for_irq(struct dpu_encoder_phys *phys_enc,
return -EWOULDBLOCK;
}
- if (irq_idx < 0) {
+ if (irq_idx == 0) {
DRM_DEBUG_KMS("skip irq wait id=%u, callback=%ps\n",
DRMID(phys_enc->parent), func);
return 0;
--
2.43.0
