From: Yang Yingliang yangyingliang@huawei.com
[ Upstream commit 5fed9fe5b41aea58e5b32be506dc50c9ab9a0e4d ]
Add the missing iounmap() before return from of_fsl_spi_probe() in the error handling case.
Fixes: 0f0581b24bd0 ("spi: fsl: Convert to use CS GPIO descriptors") Reported-by: Hulk Robot hulkci@huawei.com Signed-off-by: Yang Yingliang yangyingliang@huawei.com Link: https://lore.kernel.org/r/20210401140350.1677925-1-yangyingliang@huawei.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/spi/spi-fsl-spi.c | 23 ++++++++++++++++++----- 1 file changed, 18 insertions(+), 5 deletions(-)
diff --git a/drivers/spi/spi-fsl-spi.c b/drivers/spi/spi-fsl-spi.c index e4a8d203f940..d0e5aa18b7ba 100644 --- a/drivers/spi/spi-fsl-spi.c +++ b/drivers/spi/spi-fsl-spi.c @@ -707,6 +707,11 @@ static int of_fsl_spi_probe(struct platform_device *ofdev) struct resource mem; int irq, type; int ret; + bool spisel_boot = false; +#if IS_ENABLED(CONFIG_FSL_SOC) + struct mpc8xxx_spi_probe_info *pinfo = NULL; +#endif +
ret = of_mpc8xxx_spi_probe(ofdev); if (ret) @@ -715,9 +720,8 @@ static int of_fsl_spi_probe(struct platform_device *ofdev) type = fsl_spi_get_type(&ofdev->dev); if (type == TYPE_FSL) { struct fsl_spi_platform_data *pdata = dev_get_platdata(dev); - bool spisel_boot = false; #if IS_ENABLED(CONFIG_FSL_SOC) - struct mpc8xxx_spi_probe_info *pinfo = to_of_pinfo(pdata); + pinfo = to_of_pinfo(pdata);
spisel_boot = of_property_read_bool(np, "fsl,spisel_boot"); if (spisel_boot) { @@ -746,15 +750,24 @@ static int of_fsl_spi_probe(struct platform_device *ofdev)
ret = of_address_to_resource(np, 0, &mem); if (ret) - return ret; + goto unmap_out;
irq = platform_get_irq(ofdev, 0); - if (irq < 0) - return irq; + if (irq < 0) { + ret = irq; + goto unmap_out; + }
master = fsl_spi_probe(dev, &mem, irq);
return PTR_ERR_OR_ZERO(master); + +unmap_out: +#if IS_ENABLED(CONFIG_FSL_SOC) + if (spisel_boot) + iounmap(pinfo->immr_spi_cs); +#endif + return ret; }
static int of_fsl_spi_remove(struct platform_device *ofdev)