iio: adc: xilinx: Fix VREFN sign

[cascardo/linux.git] / drivers / iio / kfifo_buf.c

diff --git a/drivers/iio/kfifo_buf.c b/drivers/iio/kfifo_buf.c
index b2beea0..847ca56 100644 (file)
--- a/drivers/iio/kfifo_buf.c
+++ b/drivers/iio/kfifo_buf.c
@@ -83,9 +83,6 @@ static int iio_store_to_kfifo(struct iio_buffer *r,
        ret = kfifo_in(&kf->kf, data, 1);
        if (ret != 1)
                return -EBUSY;
-
-       wake_up_interruptible_poll(&r->pollq, POLLIN | POLLRDNORM);
-
        return 0;
 }
 
@@ -109,16 +106,16 @@ static int iio_read_first_n_kfifo(struct iio_buffer *r,
        return copied;
 }
 
-static bool iio_kfifo_buf_data_available(struct iio_buffer *r)
+static size_t iio_kfifo_buf_data_available(struct iio_buffer *r)
 {
        struct iio_kfifo *kf = iio_to_kfifo(r);
-       bool empty;
+       size_t samples;
 
        mutex_lock(&kf->user_lock);
-       empty = kfifo_is_empty(&kf->kf);
+       samples = kfifo_len(&kf->kf);
        mutex_unlock(&kf->user_lock);
 
-       return !empty;
+       return samples;
 }
 
 static void iio_kfifo_buffer_release(struct iio_buffer *buffer)