diff options
| author |   Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2012-09-11 22:19:47 -0700 |
|---|---|---|
| committer |   Linus Walleij <linus.walleij@linaro.org> | 2012-09-12 17:45:01 +0200 |
| commit | 3c0528810c18213a4d820da74557ba89339cb6ed (patch) | |
| tree | 9c5ae912c7d6fc82484d5bbb0731adf4b3b32d0a /drivers/gpio | |
| parent | gpio: 74x164: Add support for the daisy-chaining (diff) | |
| download | linux-dev-3c0528810c18213a4d820da74557ba89339cb6ed.tar.xz linux-dev-3c0528810c18213a4d820da74557ba89339cb6ed.zip | |
gpio: pcf857x: fixup smatch WARNING
6e20a0a429bd4dc07d6de16d9c247270e04e4aa0
(gpio: pcf857x: enable gpio_to_irq() support)
added new smatch warnings
drivers/gpio/gpio-pcf857x.c:288 pcf857x_probe() error: we previously \
assumed 'pdata' could be null (see line 277)
drivers/gpio/gpio-pcf857x.c:364 pcf857x_probe() warn: variable dereferenced\
before check 'pdata' (see line 292)
drivers/gpio/gpio-pcf857x.c:421 pcf857x_remove() error: we previously\
assumed 'pdata' could be null (see line 410)
This patch fixes it
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpio-pcf857x.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpio/gpio-pcf857x.c b/drivers/gpio/gpio-pcf857x.c index 12e3e484d70b..16af35cd2b10 100644 --- a/drivers/gpio/gpio-pcf857x.c +++ b/drivers/gpio/gpio-pcf857x.c @@ -285,7 +285,7 @@ static int pcf857x_probe(struct i2c_client *client, gpio->chip.ngpio = id->driver_data; /* enable gpio_to_irq() if platform has settings */ - if (pdata->irq) { + if (pdata && pdata->irq) { status = pcf857x_irq_domain_init(gpio, pdata, &client->dev); if (status < 0) { dev_err(&client->dev, "irq_domain init failed\n"); @@ -394,7 +394,7 @@ fail: dev_dbg(&client->dev, "probe error %d for '%s'\n", status, client->name); - if (pdata->irq) + if (pdata && pdata->irq) pcf857x_irq_domain_cleanup(gpio); kfree(gpio); @@ -418,7 +418,7 @@ static int pcf857x_remove(struct i2c_client *client) } } - if (pdata->irq) + if (pdata && pdata->irq) pcf857x_irq_domain_cleanup(gpio); status = gpiochip_remove(&gpio->chip); |