From: Christophe JAILLET christophe.jaillet@wanadoo.fr
stable inclusion from stable-5.10.65 commit 38235f195de92b172224eedca0e2ac8bdf2c8c6d bugzilla: 182361 https://gitee.com/openeuler/kernel/issues/I4EH3U
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ Upstream commit dcb0145821017e929a733e2271c85c6f82b9c9f8 ]
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 Signed-off-by: Sean Young sean@mess.org Signed-off-by: Mauro Carvalho Chehab mchehab+huawei@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Chen Jun chenjun102@huawei.com Acked-by: Weilong Chen chenweilong@huawei.com
Signed-off-by: Chen Jun chenjun102@huawei.com --- 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 4077217777f9..93194f03764d 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; }