From: Yang Yingliang <yangyingliang@huawei.com>
To: <linux-kernel@vger.kernel.org>, <linux-spi@vger.kernel.org>,
<linux-riscv@lists.infradead.org>
Cc: <conor.dooley@microchip.com>, <daire.mcnamara@microchip.com>,
<broonie@kernel.org>
Subject: [PATCH -next v2 2/3] spi: microchip-core: switch to use devm_spi_alloc_master()
Date: Wed, 13 Jul 2022 10:56:56 +0800 [thread overview]
Message-ID: <20220713025657.3524506-3-yangyingliang@huawei.com> (raw)
In-Reply-To: <20220713025657.3524506-1-yangyingliang@huawei.com>
Switch to use devm_spi_alloc_master() to simpify error path.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
---
drivers/spi/spi-microchip-core.c | 20 +++++++-------------
1 file changed, 7 insertions(+), 13 deletions(-)
diff --git a/drivers/spi/spi-microchip-core.c b/drivers/spi/spi-microchip-core.c
index c26767343176..1a24e47f8305 100644
--- a/drivers/spi/spi-microchip-core.c
+++ b/drivers/spi/spi-microchip-core.c
@@ -513,7 +513,7 @@ static int mchp_corespi_probe(struct platform_device *pdev)
u32 num_cs;
int ret = 0;
- master = spi_alloc_master(&pdev->dev, sizeof(*spi));
+ master = devm_spi_alloc_master(&pdev->dev, sizeof(*spi));
if (!master)
return dev_err_probe(&pdev->dev, -ENOMEM,
"unable to allocate master for SPI controller\n");
@@ -535,36 +535,32 @@ static int mchp_corespi_probe(struct platform_device *pdev)
spi = spi_master_get_devdata(master);
spi->regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
- if (IS_ERR(spi->regs)) {
- ret = PTR_ERR(spi->regs);
- goto error_release_master;
- }
+ if (IS_ERR(spi->regs))
+ return PTR_ERR(spi->regs);
spi->irq = platform_get_irq(pdev, 0);
if (spi->irq <= 0) {
dev_err(&pdev->dev, "invalid IRQ %d for SPI controller\n", spi->irq);
- ret = -ENXIO;
- goto error_release_master;
+ return -ENXIO;
}
ret = devm_request_irq(&pdev->dev, spi->irq, mchp_corespi_interrupt,
IRQF_SHARED, dev_name(&pdev->dev), master);
if (ret) {
dev_err(&pdev->dev, "could not request irq: %d\n", ret);
- goto error_release_master;
+ return ret;
}
spi->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(spi->clk)) {
- ret = PTR_ERR(spi->clk);
dev_err(&pdev->dev, "could not get clk: %d\n", ret);
- goto error_release_master;
+ return PTR_ERR(spi->clk);
}
ret = clk_prepare_enable(spi->clk);
if (ret) {
dev_err(&pdev->dev, "failed to enable clock\n");
- goto error_release_master;
+ return ret;
}
mchp_corespi_init(master, spi);
@@ -583,8 +579,6 @@ static int mchp_corespi_probe(struct platform_device *pdev)
error_release_hardware:
mchp_corespi_disable(spi);
clk_disable_unprepare(spi->clk);
-error_release_master:
- spi_master_put(master);
return ret;
}
--
2.25.1
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next prev parent reply other threads:[~2022-07-13 2:48 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-13 2:56 [PATCH -next v2 0/3] spi: microchip-core: fix and cleanups Yang Yingliang
2022-07-13 2:56 ` [PATCH -next v2 1/3] spi: microchip-core: fix UAF in mchp_corespi_remove() Yang Yingliang
2022-07-13 2:56 ` Yang Yingliang [this message]
2022-07-13 2:56 ` [PATCH -next v2 3/3] spi: microchip-core: switch to use dev_err_probe() Yang Yingliang
2022-07-13 7:03 ` [PATCH -next v2 0/3] spi: microchip-core: fix and cleanups Conor.Dooley
2022-07-13 14:19 ` Mark Brown
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