From: Keith Busch <keith.busch@intel.com>
Date: Fri, 21 Sep 2012 16:49:05 +0000 (-0600)
Subject: NVMe: Set result from user admin command
X-Git-Tag: v3.9-rc4~8^2~5
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=f4f117f64baf8840d22266d518227b2a186d294b;p=karo-tx-linux.git

NVMe: Set result from user admin command

The ioctl data structure includes space for the 'result' of the admin
command to be returned; it just wasn't filled in.

Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
---

diff --git a/drivers/block/nvme.c b/drivers/block/nvme.c
index af88635e44e4..47c860454289 100644
--- a/drivers/block/nvme.c
+++ b/drivers/block/nvme.c
@@ -1237,12 +1237,17 @@ static int nvme_user_admin_cmd(struct nvme_dev *dev,
 	if (length != cmd.data_len)
 		status = -ENOMEM;
 	else
-		status = nvme_submit_admin_cmd(dev, &c, NULL);
+		status = nvme_submit_admin_cmd(dev, &c, &cmd.result);
 
 	if (cmd.data_len) {
 		nvme_unmap_user_pages(dev, cmd.opcode & 1, iod);
 		nvme_free_iod(dev, iod);
 	}
+
+	if (!status && copy_to_user(&ucmd->result, &cmd.result,
+							sizeof(cmd.result)))
+		status = -EFAULT;
+
 	return status;
 }