From: Lukas Wunner <lukas@wunner.de>
To: Mark Brown <broonie@kernel.org>
Cc: linux-spi@vger.kernel.org, Tomer Maimon <tmaimon77@gmail.com>
Subject: [PATCH 16/17] spi: npcm-fiu: Disable clock in probe error path
Date: Mon, 7 Dec 2020 09:17:16 +0100 [thread overview]
Message-ID: <9ae62f4e1cfe542bec57ac2743e6fca9f9548f55.1607286887.git.lukas@wunner.de> (raw)
In-Reply-To: <cover.1607286887.git.lukas@wunner.de>
If the call to devm_spi_register_master() fails on probe of the NPCM FIU
SPI driver, the clock "fiu->clk" is erroneously not unprepared and
disabled. Fix it.
Fixes: ace55c411b11 ("spi: npcm-fiu: add NPCM FIU controller driver")
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Cc: <stable@vger.kernel.org> # v5.4+
Cc: Tomer Maimon <tmaimon77@gmail.com>
---
drivers/spi/spi-npcm-fiu.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/spi/spi-npcm-fiu.c b/drivers/spi/spi-npcm-fiu.c
index 1cb9329de945..b62471ab6d7f 100644
--- a/drivers/spi/spi-npcm-fiu.c
+++ b/drivers/spi/spi-npcm-fiu.c
@@ -677,7 +677,7 @@ static int npcm_fiu_probe(struct platform_device *pdev)
struct npcm_fiu_spi *fiu;
void __iomem *regbase;
struct resource *res;
- int id;
+ int id, ret;
ctrl = devm_spi_alloc_master(dev, sizeof(*fiu));
if (!ctrl)
@@ -735,7 +735,11 @@ static int npcm_fiu_probe(struct platform_device *pdev)
ctrl->num_chipselect = fiu->info->max_cs;
ctrl->dev.of_node = dev->of_node;
- return devm_spi_register_master(dev, ctrl);
+ ret = devm_spi_register_master(dev, ctrl);
+ if (ret)
+ clk_disable_unprepare(fiu->clk);
+
+ return ret;
}
static int npcm_fiu_remove(struct platform_device *pdev)
--
2.29.2
next prev parent reply other threads:[~2020-12-07 8:46 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-07 8:17 [PATCH 00/17] SPI probe/remove sanitization for 5.11 Lukas Wunner
2020-12-07 8:17 ` [PATCH 01/17] spi: davinci: Fix use-after-free on unbind Lukas Wunner
2020-12-07 8:17 ` [PATCH 02/17] spi: spi-geni-qcom: " Lukas Wunner
2020-12-07 8:17 ` [PATCH 03/17] spi: spi-qcom-qspi: " Lukas Wunner
2020-12-07 8:17 ` [PATCH 04/17] spi: spi-sh: " Lukas Wunner
2020-12-07 8:17 ` [PATCH 05/17] spi: pxa2xx: " Lukas Wunner
2020-12-07 8:17 ` [PATCH 06/17] spi: rpc-if: " Lukas Wunner
2020-12-07 8:17 ` [PATCH 07/17] spi: mxic: Don't leak SPI master in probe error path Lukas Wunner
2020-12-07 8:17 ` [PATCH 08/17] spi: spi-mtk-nor: " Lukas Wunner
2020-12-07 8:17 ` [PATCH 09/17] spi: gpio: " Lukas Wunner
2020-12-07 8:17 ` [PATCH 10/17] spi: rb4xx: " Lukas Wunner
2020-12-07 8:17 ` [PATCH 11/17] spi: sc18is602: " Lukas Wunner
2020-12-07 8:17 ` [PATCH 12/17] media: netup_unidvb: " Lukas Wunner
2020-12-07 8:17 ` [PATCH 13/17] spi: mt7621: Disable clock " Lukas Wunner
2020-12-07 8:17 ` [PATCH 14/17] spi: mt7621: Don't leak SPI master " Lukas Wunner
2020-12-07 8:17 ` [PATCH 15/17] spi: ar934x: " Lukas Wunner
2020-12-07 8:17 ` Lukas Wunner [this message]
2020-12-07 8:17 ` [PATCH 17/17] spi: atmel-quadspi: Fix use-after-free on unbind Lukas Wunner
2020-12-07 15:03 ` Tudor.Ambarus
2020-12-07 17:22 ` [PATCH 00/17] SPI probe/remove sanitization for 5.11 Mark Brown
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