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| author | Andrey Smirnov <andrew.smirnov@gmail.com> | 2019-03-10 23:27:35 -0700 |
|---|---|---|
| committer | Bartosz Golaszewski <bgolaszewski@baylibre.com> | 2019-03-18 08:58:45 +0100 |
| commit | fc57949cfd1f1060a6154e45ebeeb80ac85bd499 (patch) | |
| tree | 6dfd705ce00488c571d5ce1676491209db50252f /drivers/gpio | |
| parent | db9ed63ca510ecb3df0b4fec170830a96017b7d1 (diff) | |
| download | linux-fc57949cfd1f1060a6154e45ebeeb80ac85bd499.tar.gz linux-fc57949cfd1f1060a6154e45ebeeb80ac85bd499.tar.bz2 linux-fc57949cfd1f1060a6154e45ebeeb80ac85bd499.zip | |
gpio: vf610: Use devres to disable clk_gpio
Clk_gpio should be disabled in all error paths in the code that
follws, including the case when either gpiochip_add_data() or
gpiochip_irqchip_add() fail. To simplify things fix this by using
devm_add_action() to disable corresponding clock in case of any erros
as well as driver/device removal.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Heiner Kallweit <hkallweit1@gmail.com>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: linux-gpio@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-imx@nxp.com
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpio-vf610.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpio/gpio-vf610.c b/drivers/gpio/gpio-vf610.c index 78c1f8ebbe8f..f7445468677d 100644 --- a/drivers/gpio/gpio-vf610.c +++ b/drivers/gpio/gpio-vf610.c @@ -289,6 +289,10 @@ static int vf610_gpio_probe(struct platform_device *pdev) ret = clk_prepare_enable(port->clk_gpio); if (ret) return ret; + ret = devm_add_action_or_reset(dev, vf610_gpio_disable_clk, + port->clk_gpio); + if (ret) + return ret; } else if (port->clk_gpio == ERR_PTR(-EPROBE_DEFER)) { return PTR_ERR(port->clk_gpio); } @@ -345,8 +349,6 @@ static int vf610_gpio_remove(struct platform_device *pdev) struct vf610_gpio_port *port = platform_get_drvdata(pdev); gpiochip_remove(&port->gc); - if (!IS_ERR(port->clk_gpio)) - clk_disable_unprepare(port->clk_gpio); return 0; } |