linux-kernel - [PATCH v1 3/5] spi: spi-nxp-fspi: use guard(mutex) to simplify the code

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250423-flexspipatch-v1-3-292e530509d3@nxp.com>
Date: Wed, 23 Apr 2025 14:11:40 +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 v1 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 23099e60b6fb7e899f95fa0427208b33bc5522ac..2eafd6bb819165740f7eeddaf5d2e90fc5682b6c 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