diff options
| author | Nicholas Mc Guire <hofrat@osadl.org> | 2018-11-27 18:00:18 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-02-12 19:47:06 +0100 |
| commit | 26e62a22732427bcab70de8bf01655962d111c22 (patch) | |
| tree | 8752d0a7787c3d4d06bed8c597c64d0b05fbbaeb /drivers/gpio | |
| parent | 6c95c2eebead155776b68013283c6bb712fb3755 (diff) | |
gpio: mt7621: pass mediatek_gpio_bank_probe() failure up the stack
[ Upstream commit a109c2dbb571b10bb9969285b646f57309c98251 ]
The error cases of mediatek_gpio_bank_probe() would go unnoticed (except
for the dev_err() messages). The probe function should return an error
if one of the banks failed to initialize properly indicated by
not returning non-0.
Fixes: 4ba9c3afda41 ("gpio: mt7621: Add a driver for MT7621")
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Acked-by: Sean Wang <sean.wang@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpio-mt7621.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/gpio/gpio-mt7621.c b/drivers/gpio/gpio-mt7621.c index 1ec95bc18f5b..00e954f22bc9 100644 --- a/drivers/gpio/gpio-mt7621.c +++ b/drivers/gpio/gpio-mt7621.c @@ -297,6 +297,7 @@ mediatek_gpio_probe(struct platform_device *pdev) struct device_node *np = dev->of_node; struct mtk *mtk; int i; + int ret; mtk = devm_kzalloc(dev, sizeof(*mtk), GFP_KERNEL); if (!mtk) @@ -311,8 +312,11 @@ mediatek_gpio_probe(struct platform_device *pdev) platform_set_drvdata(pdev, mtk); mediatek_gpio_irq_chip.name = dev_name(dev); - for (i = 0; i < MTK_BANK_CNT; i++) - mediatek_gpio_bank_probe(dev, np, i); + for (i = 0; i < MTK_BANK_CNT; i++) { + ret = mediatek_gpio_bank_probe(dev, np, i); + if (ret) + return ret; + } return 0; } |