diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/nvme/host/ioctl.c | 26 |
1 files changed, 16 insertions, 10 deletions
diff --git a/drivers/nvme/host/ioctl.c b/drivers/nvme/host/ioctl.c index 2e7780ea0354..d93928d1e5bd 100644 --- a/drivers/nvme/host/ioctl.c +++ b/drivers/nvme/host/ioctl.c @@ -177,6 +177,20 @@ static int nvme_submit_io(struct nvme_ns *ns, struct nvme_user_io __user *uio) metadata, meta_len, lower_32_bits(io.slba), NULL, 0); } +static bool nvme_validate_passthru_nsid(struct nvme_ctrl *ctrl, + struct nvme_ns *ns, __u32 nsid) +{ + if (ns && nsid != ns->head->ns_id) { + dev_err(ctrl->device, + "%s: nsid (%u) in cmd does not match nsid (%u)" + "of namespace\n", + current->comm, nsid, ns->head->ns_id); + return false; + } + + return true; +} + static int nvme_user_cmd(struct nvme_ctrl *ctrl, struct nvme_ns *ns, struct nvme_passthru_cmd __user *ucmd) { @@ -192,12 +206,8 @@ static int nvme_user_cmd(struct nvme_ctrl *ctrl, struct nvme_ns *ns, return -EFAULT; if (cmd.flags) return -EINVAL; - if (ns && cmd.nsid != ns->head->ns_id) { - dev_err(ctrl->device, - "%s: nsid (%u) in cmd does not match nsid (%u) of namespace\n", - current->comm, cmd.nsid, ns->head->ns_id); + if (!nvme_validate_passthru_nsid(ctrl, ns, cmd.nsid)) return -EINVAL; - } memset(&c, 0, sizeof(c)); c.common.opcode = cmd.opcode; @@ -242,12 +252,8 @@ static int nvme_user_cmd64(struct nvme_ctrl *ctrl, struct nvme_ns *ns, return -EFAULT; if (cmd.flags) return -EINVAL; - if (ns && cmd.nsid != ns->head->ns_id) { - dev_err(ctrl->device, - "%s: nsid (%u) in cmd does not match nsid (%u) of namespace\n", - current->comm, cmd.nsid, ns->head->ns_id); + if (!nvme_validate_passthru_nsid(ctrl, ns, cmd.nsid)) return -EINVAL; - } memset(&c, 0, sizeof(c)); c.common.opcode = cmd.opcode; |