Currently the IRQ is requested from within the init_device() function. This
function is not only called during device probe, but also during resume
causing the driver to try to request the IRQ again. Move requesting the IRQ
from init_device() to the probe function to make sure that it is only
requested once.
Signed-off-by: Lars-Peter Clausen <l...@metafoo.de>
---
drivers/media/i2c/adv7180.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/drivers/media/i2c/adv7180.c b/drivers/media/i2c/adv7180.c
index bffe6eb..172e4a2 100644
--- a/drivers/media/i2c/adv7180.c
+++ b/drivers/media/i2c/adv7180.c
@@ -553,11 +553,6 @@ static int init_device(struct i2c_client *client, struct
adv7180_state *state)
/* register for interrupts */
if (state->irq > 0) {
- ret = request_threaded_irq(state->irq, NULL, adv7180_irq,
- IRQF_ONESHOT, KBUILD_MODNAME, state);
- if (ret)
- return ret;
-
ret = i2c_smbus_write_byte_data(client, ADV7180_ADI_CTRL_REG,
ADV7180_ADI_CTRL_IRQ_SPACE);
if (ret < 0)
@@ -597,7 +592,6 @@ static int init_device(struct i2c_client *client, struct
adv7180_state *state)
return 0;
err:
- free_irq(state->irq, state);
return ret;
}
@@ -636,6 +630,13 @@ static int adv7180_probe(struct i2c_client *client,
if (ret)
goto err_free_ctrl;
+ if (state->irq) {
+ ret = request_threaded_irq(client->irq, NULL, adv7180_irq,
+ IRQF_ONESHOT, KBUILD_MODNAME, state);
+ if (ret)
+ goto err_free_ctrl;
+ }
+
ret = v4l2_async_register_subdev(sd);
if (ret)
goto err_free_irq;
--
1.8.0
--
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