[media] coda: improve allocation error messages

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

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

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 fddd10d53558..529cc3e8acb0 100644
--- a/drivers/media/platform/coda/coda-bit.c
+++ b/drivers/media/platform/coda/coda-bit.c
@@ -1378,8 +1378,10 @@ 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 73114529b2c4..0f8a2c970405 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;