linux-kernel - [PATCH v2 3/5] spi: spi-nxp-fspi: use guard(mutex) to simplify the code

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Message-Id: <20250424-flexspipatch-v2-3-e9eb643e2286@nxp.com>
Date: Thu, 24 Apr 2025 15:33:27 +0800
From: Haibo Chen <haibo.chen@....com>
To: Haibo Chen <haibo.chen@....com>, Han Xu <han.xu@....com>, 
 Yogesh Gaur <yogeshgaur.83@...il.com>, Mark Brown <broonie@...nel.org>
Cc: linux-spi@...r.kernel.org, imx@...ts.linux.dev, 
 linux-kernel@...r.kernel.org
Subject: [PATCH v2 3/5] spi: spi-nxp-fspi: use guard(mutex) to simplify the
 code

Use guard(mutex) to simplify the code logic.

Signed-off-by: Haibo Chen <haibo.chen@....com>
---
 drivers/spi/spi-nxp-fspi.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/spi/spi-nxp-fspi.c b/drivers/spi/spi-nxp-fspi.c
index 438a9c103c5969bcae06b4e02d98397ffdcaa345..e001c7241269ec8d3fcae25cb6a36b5e47600066 100644
--- a/drivers/spi/spi-nxp-fspi.c
+++ b/drivers/spi/spi-nxp-fspi.c
@@ -932,11 +932,10 @@ static int nxp_fspi_exec_op(struct spi_mem *mem, const struct spi_mem_op *op)
 	struct nxp_fspi *f = spi_controller_get_devdata(mem->spi->controller);
 	int err = 0;
 
-	mutex_lock(&f->lock);
+	guard(mutex)(&f->lock);
 
 	err = pm_runtime_get_sync(f->dev);
 	if (err < 0) {
-		mutex_unlock(&f->lock);
 		dev_err(f->dev, "Failed to enable clock %d\n", __LINE__);
 		return err;
 	}
@@ -972,7 +971,6 @@ static int nxp_fspi_exec_op(struct spi_mem *mem, const struct spi_mem_op *op)
 	pm_runtime_mark_last_busy(f->dev);
 	pm_runtime_put_autosuspend(f->dev);
 
-	mutex_unlock(&f->lock);
 	return err;
 }
 

-- 
2.34.1