From: Lukas Wunner <lukas@wunner.de>
To: Mark Brown <broonie@kernel.org>
Cc: linux-spi@vger.kernel.org, Bert Vermeulen <bert@biot.com>
Subject: [PATCH for-5.10] spi: rb4xx: Don't leak SPI master in probe error path
Date: Mon, 16 Nov 2020 09:23:11 +0100 [thread overview]
Message-ID: <7ea28322f0295201ecd93253600b613fdc588d17.1605512876.git.lukas@wunner.de> (raw)
In-Reply-To: <73adc6ba84a4f968f2e1499a776e5c928fbdde56.1605512876.git.lukas@wunner.de>
If the calls to devm_clk_get(), devm_spi_register_master() or
clk_prepare_enable() fail on probe of the Mikrotik RB4xx SPI driver,
the spi_master struct is erroneously not freed.
Fix by switching over to the new devm_spi_alloc_master() helper.
Fixes: 05aec357871f ("spi: Add SPI driver for Mikrotik RB4xx series boards")
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Cc: <stable@vger.kernel.org> # v4.2+: 5e844cc37a5c: spi: Introduce device-managed SPI controller allocation
Cc: <stable@vger.kernel.org> # v4.2+
Cc: Bert Vermeulen <bert@biot.com>
---
drivers/spi/spi-rb4xx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/spi/spi-rb4xx.c b/drivers/spi/spi-rb4xx.c
index 8aa51beb4ff3..9f97d18a05c1 100644
--- a/drivers/spi/spi-rb4xx.c
+++ b/drivers/spi/spi-rb4xx.c
@@ -143,7 +143,7 @@ static int rb4xx_spi_probe(struct platform_device *pdev)
if (IS_ERR(spi_base))
return PTR_ERR(spi_base);
- master = spi_alloc_master(&pdev->dev, sizeof(*rbspi));
+ master = devm_spi_alloc_master(&pdev->dev, sizeof(*rbspi));
if (!master)
return -ENOMEM;
--
2.28.0
next prev parent reply other threads:[~2020-11-16 9:13 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-16 8:23 [PATCH for-5.10] spi: spi-geni-qcom: Fix use-after-free on unbind Lukas Wunner
2020-11-16 8:23 ` [PATCH for-5.10] spi: spi-qcom-qspi: " Lukas Wunner
2020-11-16 8:23 ` [PATCH for-5.10] spi: spi-sh: " Lukas Wunner
2020-11-16 8:23 ` [PATCH for-5.10] spi: pxa2xx: " Lukas Wunner
2020-11-16 8:23 ` [PATCH for-5.10] spi: rpc-if: " Lukas Wunner
2020-11-28 20:20 ` Sergey Shtylyov
2020-11-29 11:35 ` Lukas Wunner
2020-11-30 19:18 ` Sergey Shtylyov
2020-12-02 11:43 ` Lukas Wunner
2020-11-16 8:23 ` [PATCH for-5.10] spi: mxic: Don't leak SPI master in probe error path Lukas Wunner
2020-11-16 8:23 ` [PATCH for-5.10] spi: mt7621: " Lukas Wunner
2020-11-16 11:05 ` Stefan Roese
2020-11-16 8:23 ` [PATCH for-5.10] spi: spi-mtk-nor: " Lukas Wunner
2020-11-17 4:02 ` Ikjoon Jang
2020-11-17 12:32 ` Mark Brown
2020-11-16 8:23 ` [PATCH for-5.10] spi: gpio: " Lukas Wunner
2020-11-16 19:23 ` Andrey Smirnov
2020-11-16 23:03 ` Lukas Wunner
2020-11-16 23:59 ` Andrey Smirnov
2020-11-18 1:08 ` Linus Walleij
2020-11-16 8:23 ` [PATCH for-5.10] spi: npcm-fiu: " Lukas Wunner
2020-11-17 22:38 ` Mark Brown
2020-12-01 13:57 ` Mark Brown
2020-12-01 14:30 ` Lukas Wunner
2020-12-01 17:17 ` Mark Brown
2020-12-01 17:49 ` Lukas Wunner
2020-12-02 15:17 ` Mark Brown
2020-11-16 8:23 ` Lukas Wunner [this message]
2020-11-16 8:23 ` [PATCH for-5.10] spi: sc18is602: " Lukas Wunner
2020-11-16 8:23 ` [PATCH for-5.10] media: netup_unidvb: " Lukas Wunner
2020-11-23 14:06 ` Mauro Carvalho Chehab
2020-12-01 13:57 ` Mark Brown
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