[PATCH 4.19 121/323] spi: bcm-qspi: Fix missing clk_disable_unprepare() on error in bcm_qspi_probe()

From: Greg Kroah-Hartman
Date: Wed Nov 24 2021 - 08:02:44 EST


From: Yang Yingliang <yangyingliang@xxxxxxxxxx>

[ Upstream commit ca9b8f56ec089d3a436050afefd17b7237301f47 ]

Fix the missing clk_disable_unprepare() before return
from bcm_qspi_probe() in the error handling case.

Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20211018073413.2029081-1-yangyingliang@xxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/spi/spi-bcm-qspi.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi-bcm-qspi.c b/drivers/spi/spi-bcm-qspi.c
index 4ee92f7ca20bd..b2fd7a3691964 100644
--- a/drivers/spi/spi-bcm-qspi.c
+++ b/drivers/spi/spi-bcm-qspi.c
@@ -1305,7 +1305,7 @@ int bcm_qspi_probe(struct platform_device *pdev,
&qspi->dev_ids[val]);
if (ret < 0) {
dev_err(&pdev->dev, "IRQ %s not found\n", name);
- goto qspi_probe_err;
+ goto qspi_unprepare_err;
}

qspi->dev_ids[val].dev = qspi;
@@ -1320,7 +1320,7 @@ int bcm_qspi_probe(struct platform_device *pdev,
if (!num_ints) {
dev_err(&pdev->dev, "no IRQs registered, cannot init driver\n");
ret = -EINVAL;
- goto qspi_probe_err;
+ goto qspi_unprepare_err;
}

/*
@@ -1371,6 +1371,7 @@ int bcm_qspi_probe(struct platform_device *pdev,

qspi_reg_err:
bcm_qspi_hw_uninit(qspi);
+qspi_unprepare_err:
clk_disable_unprepare(qspi->clk);
qspi_probe_err:
kfree(qspi->dev_ids);
--
2.33.0