Staging: iio: test for failed allocation

We should return test to see if iio_allocate_trigger() fails and return -ENOMEM.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/iio/accel/lis3l02dq_ring.c b/drivers/staging/iio/accel/lis3l02dq_ring.c
index 93712430e579192f4a9b6528d24aedc360f3ade1..a4d97ea0df3d8adc73b0e5c6f515c2b5cfbf5c49 100644 (file)
--- a/drivers/staging/iio/accel/lis3l02dq_ring.c
+++ b/drivers/staging/iio/accel/lis3l02dq_ring.c
@@ -493,6 +493,9 @@ int lis3l02dq_probe_trigger(struct iio_dev *indio_dev)
        struct lis3l02dq_state *state = indio_dev->dev_data;
 
        state->trig = iio_allocate_trigger();
+       if (!state->trig)
+               return -ENOMEM;
+
        state->trig->name = kmalloc(IIO_TRIGGER_NAME_LENGTH, GFP_KERNEL);
        if (!state->trig->name) {
                ret = -ENOMEM;