Thread (20 messages) 20 messages, 3 authors, 2026-02-24
STALE135d
Revisions (4)
  1. v1 current
  2. v1 [diff vs current]
  3. v2 [diff vs current]
  4. v3 [diff vs current]

[PATCH v2 2/3] staging: most: dim2: use dev_err_probe and proper error codes for clock

From: Artem Lytkin <hidden>
Date: 2026-02-23 22:05:08
Also in: lkml, rust-for-linux
Subsystem: most(r) technology driver, staging subsystem, the rest · Maintainers: Parthiban Veerasooran, Christian Gromm, Greg Kroah-Hartman, Linus Torvalds

Replace hardcoded -EFAULT returns with dev_err_probe() and PTR_ERR()
when devm_clk_get() fails in fsl_mx6_enable(). This ensures the
correct error code is propagated (e.g. -EPROBE_DEFER for deferred
probing) and avoids log noise during probe deferral.

Signed-off-by: Artem Lytkin <redacted>
---
 drivers/staging/most/dim2/dim2.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/drivers/staging/most/dim2/dim2.c b/drivers/staging/most/dim2/dim2.c
index cea1ba99caf7..e4c8b4995c61 100644
--- a/drivers/staging/most/dim2/dim2.c
+++ b/drivers/staging/most/dim2/dim2.c
@@ -921,10 +921,9 @@ static int fsl_mx6_enable(struct platform_device *pdev)
 	int ret;
 
 	dev->clk = devm_clk_get(&pdev->dev, "mlb");
-	if (IS_ERR(dev->clk)) {
-		dev_err(&pdev->dev, "unable to get mlb clock\n");
-		return -EFAULT;
-	}
+	if (IS_ERR(dev->clk))
+		return dev_err_probe(&pdev->dev, PTR_ERR(dev->clk),
+				     "unable to get mlb clock\n");
 
 	ret = clk_prepare_enable(dev->clk);
 	if (ret) {
@@ -936,9 +935,9 @@ static int fsl_mx6_enable(struct platform_device *pdev)
 		/* enable pll */
 		dev->clk_pll = devm_clk_get(&pdev->dev, "pll8_mlb");
 		if (IS_ERR(dev->clk_pll)) {
-			dev_err(&pdev->dev, "unable to get mlb pll clock\n");
 			clk_disable_unprepare(dev->clk);
-			return -EFAULT;
+			return dev_err_probe(&pdev->dev, PTR_ERR(dev->clk_pll),
+					     "unable to get mlb pll clock\n");
 		}
 
 		writel(0x888, dev->io_base + 0x38);
-- 
2.43.0
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