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NVMe: handle allocation failure in nvme_map_user_pages()
[linux-2.6-block.git]
/
drivers
/
block
/
nvme.c
diff --git
a/drivers/block/nvme.c
b/drivers/block/nvme.c
index 6c0eb768562f25c53106cc3e14d928e8eab9a971..064e86a6bb4e429a2d0c0804155a38a9678f5c22 100644
(file)
--- a/
drivers/block/nvme.c
+++ b/
drivers/block/nvme.c
@@
-1044,6
+1044,8
@@
static struct nvme_iod *nvme_map_user_pages(struct nvme_dev *dev, int write,
offset = offset_in_page(addr);
count = DIV_ROUND_UP(offset + length, PAGE_SIZE);
pages = kcalloc(count, sizeof(*pages), GFP_KERNEL);
+ if (!pages)
+ return ERR_PTR(-ENOMEM);
err = get_user_pages_fast(addr, count, 1, pages);
if (err < count) {