From 51ef72bda70841fddd595142ed0e7e0fc571c500 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sat, 20 Jun 2015 16:29:14 +0800 Subject: block: nvme-scsi: Catch kcalloc failure res variable was initialized to -ENOMEM, but it's override by nvme_trans_copy_from_user(). So current code returns 0 if kcalloc fails. Fix it to return proper error code. Signed-off-by: Axel Lin Signed-off-by: Jens Axboe --- drivers/block/nvme-scsi.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'drivers/block') diff --git a/drivers/block/nvme-scsi.c b/drivers/block/nvme-scsi.c index 8e6223e5b670..ab6d1a0e5167 100644 --- a/drivers/block/nvme-scsi.c +++ b/drivers/block/nvme-scsi.c @@ -2375,7 +2375,7 @@ static int nvme_trans_unmap(struct nvme_ns *ns, struct sg_io_hdr *hdr, struct scsi_unmap_parm_list *plist; struct nvme_dsm_range *range; struct nvme_command c; - int i, nvme_sc, res = -ENOMEM; + int i, nvme_sc, res; u16 ndesc, list_len; list_len = get_unaligned_be16(&cmd[7]); @@ -2397,8 +2397,10 @@ static int nvme_trans_unmap(struct nvme_ns *ns, struct sg_io_hdr *hdr, } range = kcalloc(ndesc, sizeof(*range), GFP_KERNEL); - if (!range) + if (!range) { + res = -ENOMEM; goto out; + } for (i = 0; i < ndesc; i++) { range[i].nlb = cpu_to_le32(be32_to_cpu(plist->desc[i].nlb)); -- cgit v1.2.3