Produce some error messages when internal buffer allocation
fails, for example because the CMA region is too small.

Signed-off-by: Philipp Zabel <p.za...@pengutronix.de>
---
 drivers/media/platform/coda/coda-bit.c    | 4 +++-
 drivers/media/platform/coda/coda-common.c | 6 +++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/media/platform/coda/coda-bit.c 
b/drivers/media/platform/coda/coda-bit.c
index cc9afb7..fcc676c 100644
--- a/drivers/media/platform/coda/coda-bit.c
+++ b/drivers/media/platform/coda/coda-bit.c
@@ -1375,8 +1375,10 @@ static int __coda_start_decoding(struct coda_ctx *ctx)
        }
 
        ret = coda_alloc_framebuffers(ctx, q_data_dst, src_fourcc);
-       if (ret < 0)
+       if (ret < 0) {
+               v4l2_err(&dev->v4l2_dev, "failed to allocate framebuffers\n");
                return ret;
+       }
 
        /* Tell the decoder how many frame buffers we allocated. */
        coda_write(dev, ctx->num_internal_frames, CODA_CMD_SET_FRAME_BUF_NUM);
diff --git a/drivers/media/platform/coda/coda-common.c 
b/drivers/media/platform/coda/coda-common.c
index 5a113c5..425e279 100644
--- a/drivers/media/platform/coda/coda-common.c
+++ b/drivers/media/platform/coda/coda-common.c
@@ -971,8 +971,12 @@ int coda_alloc_aux_buf(struct coda_dev *dev, struct 
coda_aux_buf *buf,
 {
        buf->vaddr = dma_alloc_coherent(&dev->plat_dev->dev, size, &buf->paddr,
                                        GFP_KERNEL);
-       if (!buf->vaddr)
+       if (!buf->vaddr) {
+               v4l2_err(&dev->v4l2_dev,
+                        "Failed to allocate %s buffer of size %u\n",
+                        name, size);
                return -ENOMEM;
+       }
 
        buf->size = size;
 
-- 
2.0.1

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