linux-kernel - [PATCH] drm/v3d: centralize error handling when init scheduler fails

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Date:   Mon, 28 Feb 2022 17:16:47 -0100
From:   Melissa Wen <mwen@...lia.com>
To:     emma@...olt.net, airlied@...ux.ie, daniel@...ll.ch
Cc:     Jiawei.Gu@....com, andrey.grodzovsky@....com,
        christian.koenig@....com, Melissa Wen <mwen@...lia.com>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH] drm/v3d: centralize error handling when init scheduler fails

Remove redundant error message (since now it is very similar to what
we do in drm_sched_init) and centralize all error handling in a
unique place, as we follow the same steps in any case of failure.

Signed-off-by: Melissa Wen <mwen@...lia.com>
---
 drivers/gpu/drm/v3d/v3d_sched.c | 40 +++++++++++----------------------
 1 file changed, 13 insertions(+), 27 deletions(-)

diff --git a/drivers/gpu/drm/v3d/v3d_sched.c b/drivers/gpu/drm/v3d/v3d_sched.c
index 39459ae96f30..06238e6d7f5c 100644
--- a/drivers/gpu/drm/v3d/v3d_sched.c
+++ b/drivers/gpu/drm/v3d/v3d_sched.c
@@ -392,34 +392,24 @@ v3d_sched_init(struct v3d_dev *v3d)
 			     hw_jobs_limit, job_hang_limit,
 			     msecs_to_jiffies(hang_limit_ms), NULL,
 			     NULL, "v3d_bin", v3d->drm.dev);
-	if (ret) {
-		dev_err(v3d->drm.dev, "Failed to create bin scheduler: %d.", ret);
+	if (ret)
 		return ret;
-	}
 
 	ret = drm_sched_init(&v3d->queue[V3D_RENDER].sched,
 			     &v3d_render_sched_ops,
 			     hw_jobs_limit, job_hang_limit,
 			     msecs_to_jiffies(hang_limit_ms), NULL,
 			     NULL, "v3d_render", v3d->drm.dev);
-	if (ret) {
-		dev_err(v3d->drm.dev, "Failed to create render scheduler: %d.",
-			ret);
-		v3d_sched_fini(v3d);
-		return ret;
-	}
+	if (ret)
+		goto fail;
 
 	ret = drm_sched_init(&v3d->queue[V3D_TFU].sched,
 			     &v3d_tfu_sched_ops,
 			     hw_jobs_limit, job_hang_limit,
 			     msecs_to_jiffies(hang_limit_ms), NULL,
 			     NULL, "v3d_tfu", v3d->drm.dev);
-	if (ret) {
-		dev_err(v3d->drm.dev, "Failed to create TFU scheduler: %d.",
-			ret);
-		v3d_sched_fini(v3d);
-		return ret;
-	}
+	if (ret)
+		goto fail;
 
 	if (v3d_has_csd(v3d)) {
 		ret = drm_sched_init(&v3d->queue[V3D_CSD].sched,
@@ -427,27 +417,23 @@ v3d_sched_init(struct v3d_dev *v3d)
 				     hw_jobs_limit, job_hang_limit,
 				     msecs_to_jiffies(hang_limit_ms), NULL,
 				     NULL, "v3d_csd", v3d->drm.dev);
-		if (ret) {
-			dev_err(v3d->drm.dev, "Failed to create CSD scheduler: %d.",
-				ret);
-			v3d_sched_fini(v3d);
-			return ret;
-		}
+		if (ret)
+			goto fail;
 
 		ret = drm_sched_init(&v3d->queue[V3D_CACHE_CLEAN].sched,
 				     &v3d_cache_clean_sched_ops,
 				     hw_jobs_limit, job_hang_limit,
 				     msecs_to_jiffies(hang_limit_ms), NULL,
 				     NULL, "v3d_cache_clean", v3d->drm.dev);
-		if (ret) {
-			dev_err(v3d->drm.dev, "Failed to create CACHE_CLEAN scheduler: %d.",
-				ret);
-			v3d_sched_fini(v3d);
-			return ret;
-		}
+		if (ret)
+			goto fail;
 	}
 
 	return 0;
+
+fail:
+	v3d_sched_fini(v3d);
+	return ret;
 }
 
 void
-- 
2.34.1