[PATCH v3 1/4] media: imx-jpeg: Move mxc_jpeg_free_slot_data() ahead

[ming.qian@oss.nxp.com]

From: Ming Qian <ming.qian@oss.nxp.com>

Move function mxc_jpeg_free_slot_data() ahead of
mxc_jpeg_alloc_slot_data(). Then when allocation fails,
can call it to clean up erros accordingly.

Signed-off-by: Ming Qian <ming.qian@oss.nxp.com>
---
v3
- Split the moving of code into a separate patch

 .../media/platform/nxp/imx-jpeg/mxc-jpeg.c    | 46 +++++++++++--------
 1 file changed, 26 insertions(+), 20 deletions(-)

diff --git a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c
index 0e6ee997284b..b2f7e9ad1885 100644
--- a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c
+++ b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c
@@ -752,6 +752,32 @@ static int mxc_get_free_slot(struct mxc_jpeg_slot_data *slot_data)
 	return -1;
 }
 
+static void mxc_jpeg_free_slot_data(struct mxc_jpeg_dev *jpeg)
+{
+	/* free descriptor for decoding/encoding phase */
+	dma_free_coherent(jpeg->dev, sizeof(struct mxc_jpeg_desc),
+			  jpeg->slot_data.desc,
+			  jpeg->slot_data.desc_handle);
+	jpeg->slot_data.desc = NULL;
+	jpeg->slot_data.desc_handle = 0;
+
+	/* free descriptor for encoder configuration phase / decoder DHT */
+	dma_free_coherent(jpeg->dev, sizeof(struct mxc_jpeg_desc),
+			  jpeg->slot_data.cfg_desc,
+			  jpeg->slot_data.cfg_desc_handle);
+	jpeg->slot_data.cfg_desc_handle = 0;
+	jpeg->slot_data.cfg_desc = NULL;
+
+	/* free configuration stream */
+	dma_free_coherent(jpeg->dev, MXC_JPEG_MAX_CFG_STREAM,
+			  jpeg->slot_data.cfg_stream_vaddr,
+			  jpeg->slot_data.cfg_stream_handle);
+	jpeg->slot_data.cfg_stream_vaddr = NULL;
+	jpeg->slot_data.cfg_stream_handle = 0;
+
+	jpeg->slot_data.used = false;
+}
+
 static bool mxc_jpeg_alloc_slot_data(struct mxc_jpeg_dev *jpeg)
 {
 	struct mxc_jpeg_desc *desc;
@@ -798,26 +824,6 @@ static bool mxc_jpeg_alloc_slot_data(struct mxc_jpeg_dev *jpeg)
 	return false;
 }
 
-static void mxc_jpeg_free_slot_data(struct mxc_jpeg_dev *jpeg)
-{
-	/* free descriptor for decoding/encoding phase */
-	dma_free_coherent(jpeg->dev, sizeof(struct mxc_jpeg_desc),
-			  jpeg->slot_data.desc,
-			  jpeg->slot_data.desc_handle);
-
-	/* free descriptor for encoder configuration phase / decoder DHT */
-	dma_free_coherent(jpeg->dev, sizeof(struct mxc_jpeg_desc),
-			  jpeg->slot_data.cfg_desc,
-			  jpeg->slot_data.cfg_desc_handle);
-
-	/* free configuration stream */
-	dma_free_coherent(jpeg->dev, MXC_JPEG_MAX_CFG_STREAM,
-			  jpeg->slot_data.cfg_stream_vaddr,
-			  jpeg->slot_data.cfg_stream_handle);
-
-	jpeg->slot_data.used = false;
-}
-
 static void mxc_jpeg_check_and_set_last_buffer(struct mxc_jpeg_ctx *ctx,
 					       struct vb2_v4l2_buffer *src_buf,
 					       struct vb2_v4l2_buffer *dst_buf)
-- 
2.43.0-rc1