diff options
| author | Phil Reid <preid@electromag.com.au> | 2016-01-15 06:32:22 +0300 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2016-01-27 12:50:22 +0300 |
| commit | 73c13c83491142e2ee7850159fc73b5e0967806f (patch) | |
| tree | be726c397004417ccdcea53ec26b3c02cde297a6 /drivers/gpio | |
| parent | 92e963f50fc74041b5e9e744c330dca48e04f08d (diff) | |
| download | linux-73c13c83491142e2ee7850159fc73b5e0967806f.tar.xz | |
gpio: gpio-altera: Remove gpiochip on probe failure.
On failure to setup the irq altera_gpio_probe would return an error
but not go to cleanup. This resulted in kernel fault
"Unable to handle kernel paging request at virtual address xxxxxxxx"
later on in of_gpiochip_find_and_xlate.
Signed-off-by: Phil Reid <preid@electromag.com.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpio-altera.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/gpio/gpio-altera.c b/drivers/gpio/gpio-altera.c index 2aeaebd1c6e7..3f87a03abc22 100644 --- a/drivers/gpio/gpio-altera.c +++ b/drivers/gpio/gpio-altera.c @@ -312,8 +312,8 @@ static int altera_gpio_probe(struct platform_device *pdev) handle_simple_irq, IRQ_TYPE_NONE); if (ret) { - dev_info(&pdev->dev, "could not add irqchip\n"); - return ret; + dev_err(&pdev->dev, "could not add irqchip\n"); + goto teardown; } gpiochip_set_chained_irqchip(&altera_gc->mmchip.gc, @@ -326,6 +326,7 @@ static int altera_gpio_probe(struct platform_device *pdev) skip_irq: return 0; teardown: + of_mm_gpiochip_remove(&altera_gc->mmchip); pr_err("%s: registration failed with status %d\n", node->full_name, ret); |