From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
To: Yasunari.Takiguchi@sony.com, mchehab@kernel.org,
narmstrong@baylibre.com, sean@mess.org
Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
kernel-janitors@vger.kernel.org,
Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Subject: [PATCH v2] media: cxd2880-spi: Fix an error handling path
Date: Thu, 10 Jun 2021 21:54:31 +0200 [thread overview]
Message-ID: <40b114d7200d2a87150249f8228b88f7a4ee15e0.1621599392.git.christophe.jaillet@wanadoo.fr> (raw)
If an error occurs after a successful 'regulator_enable()' call,
'regulator_disable()' must be called.
Fix the error handling path of the probe accordingly.
Fixes: cb496cd472af ("media: cxd2880-spi: Add optional vcc regulator")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
v2: In case of error 'dvb_spi->vcc_supply' is set to NULL
So test for NULL instead of IS_ERR as spotted by Sean Young
v1 was part of a small serie. Patch 2/2 has been applied, so this update
is now sent as a single patch
---
drivers/media/spi/cxd2880-spi.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/media/spi/cxd2880-spi.c b/drivers/media/spi/cxd2880-spi.c
index 931ec0727cd3..df1335e7061c 100644
--- a/drivers/media/spi/cxd2880-spi.c
+++ b/drivers/media/spi/cxd2880-spi.c
@@ -524,13 +524,13 @@ cxd2880_spi_probe(struct spi_device *spi)
if (IS_ERR(dvb_spi->vcc_supply)) {
if (PTR_ERR(dvb_spi->vcc_supply) == -EPROBE_DEFER) {
ret = -EPROBE_DEFER;
- goto fail_adapter;
+ goto fail_regulator;
}
dvb_spi->vcc_supply = NULL;
} else {
ret = regulator_enable(dvb_spi->vcc_supply);
if (ret)
- goto fail_adapter;
+ goto fail_regulator;
}
dvb_spi->spi = spi;
@@ -618,6 +618,9 @@ cxd2880_spi_probe(struct spi_device *spi)
fail_attach:
dvb_unregister_adapter(&dvb_spi->adapter);
fail_adapter:
+ if (!dvb_spi->vcc_supply)
+ regulator_disable(dvb_spi->vcc_supply);
+fail_regulator:
kfree(dvb_spi);
return ret;
}
--
2.30.2
reply other threads:[~2021-06-10 19:54 UTC|newest]
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