[PATCH 3/4] ASoC: wm_adsp: Factor out checking of stream errors from the DSP

[Charles Keepax <ckeepax@opensource.wolfsonmicro.com>]

Factor out the reading of the DSP error flag into its own function to
support further improvements to the code.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
---
 sound/soc/codecs/wm_adsp.c | 28 +++++++++++++++++++---------
 1 file changed, 19 insertions(+), 9 deletions(-)

diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c
index e2e0d81..f28c244 100644
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -2812,6 +2812,23 @@ static int wm_adsp_buffer_update_avail(struct wm_adsp_compr_buf *buf)
 	return 0;
 }
 
+static int wm_adsp_buffer_check_error(struct wm_adsp_compr_buf *buf)
+{
+	int ret;
+
+	ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(error), &buf->error);
+	if (ret < 0) {
+		adsp_err(buf->dsp, "Failed to check buffer error: %d\n", ret);
+		return ret;
+	}
+	if (buf->error != 0) {
+		adsp_err(buf->dsp, "Buffer error occurred: %d\n", buf->error);
+		return -EIO;
+	}
+
+	return 0;
+}
+
 int wm_adsp_compr_handle_irq(struct wm_adsp *dsp)
 {
 	struct wm_adsp_compr_buf *buf = dsp->buffer;
@@ -2827,16 +2844,9 @@ int wm_adsp_compr_handle_irq(struct wm_adsp *dsp)
 
 	adsp_dbg(dsp, "Handling buffer IRQ\n");
 
-	ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(error), &buf->error);
-	if (ret < 0) {
-		adsp_err(dsp, "Failed to check buffer error: %d\n", ret);
-		goto out;
-	}
-	if (buf->error != 0) {
-		adsp_err(dsp, "Buffer error occurred: %d\n", buf->error);
-		ret = -EIO;
+	ret = wm_adsp_buffer_check_error(buf);
+	if (ret < 0)
 		goto out;
-	}
 
 	ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(irq_count),
 				  &buf->irq_count);
-- 
2.1.4