diff options
| -rw-r--r-- | lib/dma-debug.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/dma-debug.c b/lib/dma-debug.c index 9a350b414a5..f9e6d38b4b3 100644 --- a/lib/dma-debug.c +++ b/lib/dma-debug.c @@ -531,8 +531,11 @@ static void check_unmap(struct dma_debug_entry *ref) struct hash_bucket *bucket; unsigned long flags; - if (dma_mapping_error(ref->dev, ref->dev_addr)) + if (dma_mapping_error(ref->dev, ref->dev_addr)) { + err_printk(ref->dev, NULL, "DMA-API: device driver tries " + "to free an invalid DMA memory address\n"); return; + } bucket = get_hash_bucket(ref, &flags); entry = hash_bucket_find(bucket, ref); |