diff options
| -rw-r--r-- | kernel/dma/contiguous.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/dma/contiguous.c b/kernel/dma/contiguous.c index f005c66f378c..88c595e49e34 100644 --- a/kernel/dma/contiguous.c +++ b/kernel/dma/contiguous.c @@ -473,6 +473,11 @@ static int __init rmem_cma_setup(struct reserved_mem *rmem) return -EBUSY; } + if (memblock_is_region_reserved(rmem->base, rmem->size)) { + pr_info("Reserved memory: overlap with other memblock reserved region\n"); + return -EBUSY; + } + if (!of_get_flat_dt_prop(node, "reusable", NULL) || of_get_flat_dt_prop(node, "no-map", NULL)) return -EINVAL; |