[media] s5p-mfc: include buffer size in error message

Include buffer size in s5p_mfc_alloc_priv_buf() the error message
when it fails to allocate the buffer.
Signed-off-by: NShuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/platform/s5p-mfc/s5p_mfc_opr.c

@@ -45,7 +45,8 @@ int s5p_mfc_alloc_priv_buf(struct device *dev, dma_addr_t base,
 	b->virt = dma_alloc_coherent(dev, b->size, &b->dma, GFP_KERNEL);
 
 	if (!b->virt) {
-		mfc_err("Allocating private buffer failed\n");
+		mfc_err("Allocating private buffer of size %zu failed\n",
+			b->size);
 		return -ENOMEM;
 	}