| From 38408d056188be29a6c4e17f3703c796551bb330 Mon Sep 17 00:00:00 2001 |
| From: Hartmut Knaack <knaack.h@gmx.de> |
| Date: Wed, 1 Jan 2014 23:04:00 +0000 |
| Subject: staging:iio:ad799x fix error_free_irq which was freeing an irq that may not have been requested |
| |
| From: Hartmut Knaack <knaack.h@gmx.de> |
| |
| commit 38408d056188be29a6c4e17f3703c796551bb330 upstream. |
| |
| Only free an IRQ in error_free_irq, if it has been requested previously. |
| |
| Signed-off-by: Hartmut Knaack <knaack.h@gmx.de> |
| Acked-by: Lars-Peter Clausen <lars@metafoo.de> |
| Signed-off-by: Jonathan Cameron <jic23@kernel.org> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| |
| --- |
| drivers/staging/iio/adc/ad799x_core.c | 3 ++- |
| 1 file changed, 2 insertions(+), 1 deletion(-) |
| |
| --- a/drivers/staging/iio/adc/ad799x_core.c |
| +++ b/drivers/staging/iio/adc/ad799x_core.c |
| @@ -644,7 +644,8 @@ static int ad799x_probe(struct i2c_clien |
| return 0; |
| |
| error_free_irq: |
| - free_irq(client->irq, indio_dev); |
| + if (client->irq > 0) |
| + free_irq(client->irq, indio_dev); |
| error_cleanup_ring: |
| ad799x_ring_cleanup(indio_dev); |
| error_disable_reg: |
