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From: Artem Shimko <a.shimko.dev@gmail.com>
To: p.zabel@pengutronix.de
Cc: a.shimko.dev@gmail.com, andi.shyti@kernel.org,
	andriy.shevchenko@linux.intel.com, jsd@semihalf.com,
	linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org,
	mika.westerberg@linux.intel.com
Subject: [PATCH v2 3/3] i2c: designware-platdrv: streamline error handling
Date: Tue, 11 Nov 2025 14:45:59 +0300	[thread overview]
Message-ID: <20251111114559.3188740-3-a.shimko.dev@gmail.com> (raw)
In-Reply-To: <20251111114559.3188740-1-a.shimko.dev@gmail.com>

The probe function uses unnecessary goto statements and error variable
reassignments that complicate the code flow. The goto exit_probe pattern
adds indirection for simple error cleanup, while redundant error assignment
in lock support probe clutters the error handling.

Simplify the error paths by removing the goto exit_probe label and handling
PM runtime cleanup directly after i2c_dw_probe() failure. Additionally,
replace the error variable reassignment in i2c_dw_probe_lock_support() with
direct dev_err_probe() return. These changes make the error handling more
linear and readable while maintaining identical functionality.

Signed-off-by: Artem Shimko <a.shimko.dev@gmail.com>
---
 drivers/i2c/busses/i2c-designware-platdrv.c | 18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
index d334af1d7c6f..ab15a924dad5 100644
--- a/drivers/i2c/busses/i2c-designware-platdrv.c
+++ b/drivers/i2c/busses/i2c-designware-platdrv.c
@@ -256,10 +256,8 @@ static int dw_i2c_plat_probe(struct platform_device *pdev)
 		return ret;
 
 	ret = i2c_dw_probe_lock_support(dev);
-	if (ret) {
-		ret = dev_err_probe(device, ret, "failed to probe lock support\n");
-		return ret;
-	}
+	if (ret)
+		return dev_err_probe(device, ret, "failed to probe lock support\n");
 
 	i2c_dw_configure(dev);
 
@@ -314,14 +312,10 @@ static int dw_i2c_plat_probe(struct platform_device *pdev)
 	pm_runtime_enable(device);
 
 	ret = i2c_dw_probe(dev);
-	if (ret)
-		goto exit_probe;
-
-	return ret;
-
-exit_probe:
-	dw_i2c_plat_pm_cleanup(dev);
-	i2c_dw_prepare_clk(dev, false);
+	if (ret) {
+		dw_i2c_plat_pm_cleanup(dev);
+		i2c_dw_prepare_clk(dev, false);
+	}
 
 	return ret;
 }
-- 
2.43.0


      parent reply	other threads:[~2025-11-11 11:46 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-11-11  7:53 [PATCH RESEND] i2c: designware-platdrv: handle reset control deassert error Artem Shimko
2025-11-11  9:15 ` Philipp Zabel
2025-11-11 11:45   ` [PATCH v2 1/3] i2c: designware-platdrv: simplify reset control with devm variant Artem Shimko
2025-11-11 11:45     ` [PATCH v2 2/3] i2c: designware-platdrv: complete reset control devm conversion Artem Shimko
2025-11-11 12:43       ` Philipp Zabel
2025-11-11 14:09         ` [PATCH v3] i2c: designware-platdrv: simplify reset control and error handling Artem Shimko
2025-11-11 14:33           ` Philipp Zabel
2025-11-11 14:33         ` [PATCH v2 2/3] i2c: designware-platdrv: complete reset control devm conversion Philipp Zabel
2025-11-11 14:55           ` [PATCH v4] i2c: designware-platdrv: simplify reset control and error handling Artem Shimko
2026-01-20 13:55             ` Andi Shyti
2025-11-11 11:45     ` Artem Shimko [this message]

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