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authorHeiner Kallweit <heiner.kallweit@web.de>2016-09-17 16:43:31 +0300
committerMark Brown <broonie@kernel.org>2016-09-24 21:48:32 +0300
commit604042af7697314fffb16e266fd7d5ad488439cc (patch)
treee13c123f2e2dd91c55f6a7e33933da26cf04b262 /drivers/spi
parentacf692190f972ee2ed6578f30278f21c244d6148 (diff)
downloadlinux-604042af7697314fffb16e266fd7d5ad488439cc.tar.xz
spi: fsl-espi: improve return value handling in fsl_espi_probe
The return value of fsl_espi_probe (currently struct spi_master *) is just used for checking whether an error occurred. Change the return value type to int and simplify the code. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi')
-rw-r--r--drivers/spi/spi-fsl-espi.c24
1 files changed, 8 insertions, 16 deletions
diff --git a/drivers/spi/spi-fsl-espi.c b/drivers/spi/spi-fsl-espi.c
index dee3f822cea8..7451585a080e 100644
--- a/drivers/spi/spi-fsl-espi.c
+++ b/drivers/spi/spi-fsl-espi.c
@@ -538,8 +538,8 @@ static size_t fsl_espi_max_message_size(struct spi_device *spi)
return SPCOM_TRANLEN_MAX;
}
-static struct spi_master * fsl_espi_probe(struct device *dev,
- struct resource *mem, unsigned int irq)
+static int fsl_espi_probe(struct device *dev, struct resource *mem,
+ unsigned int irq)
{
struct fsl_spi_platform_data *pdata = dev_get_platdata(dev);
struct spi_master *master;
@@ -547,13 +547,11 @@ static struct spi_master * fsl_espi_probe(struct device *dev,
struct device_node *nc;
const __be32 *prop;
u32 regval, csmode;
- int i, len, ret = 0;
+ int i, len, ret;
master = spi_alloc_master(dev, sizeof(struct mpc8xxx_spi));
- if (!master) {
- ret = -ENOMEM;
- goto err;
- }
+ if (!master)
+ return -ENOMEM;
dev_set_drvdata(dev, master);
@@ -647,7 +645,7 @@ static struct spi_master * fsl_espi_probe(struct device *dev,
pm_runtime_mark_last_busy(dev);
pm_runtime_put_autosuspend(dev);
- return master;
+ return 0;
err_pm:
pm_runtime_put_noidle(dev);
@@ -655,8 +653,7 @@ err_pm:
pm_runtime_set_suspended(dev);
err_probe:
spi_master_put(master);
-err:
- return ERR_PTR(ret);
+ return ret;
}
static int of_fsl_espi_get_chipselects(struct device *dev)
@@ -682,7 +679,6 @@ static int of_fsl_espi_probe(struct platform_device *ofdev)
{
struct device *dev = &ofdev->dev;
struct device_node *np = ofdev->dev.of_node;
- struct spi_master *master;
struct resource mem;
unsigned int irq;
int ret;
@@ -703,11 +699,7 @@ static int of_fsl_espi_probe(struct platform_device *ofdev)
if (!irq)
return -EINVAL;
- master = fsl_espi_probe(dev, &mem, irq);
- if (IS_ERR(master))
- return PTR_ERR(master);
-
- return 0;
+ return fsl_espi_probe(dev, &mem, irq);
}
static int of_fsl_espi_remove(struct platform_device *dev)