[PATCH v2 43/46] mtd: nandsim: Wire up NANDSIM_IOC_NEW_INSTANCE

[Daniel Walter]

From: Richard Weinberger <rich...@nod.at>

Since we have now all what we need we can arm NANDSIM_IOC_NEW_INSTANCE.

Signed-off-by: Richard Weinberger <rich...@nod.at>
---
 drivers/mtd/nand/nandsim.c | 31 ++++++++++++++++++++++++++++---
 1 file changed, 28 insertions(+), 3 deletions(-)

diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c
index d0cc24d..bb30763 100644
--- a/drivers/mtd/nand/nandsim.c
+++ b/drivers/mtd/nand/nandsim.c
@@ -2900,10 +2900,35 @@ out:
 static long ns_ctrl_ioctl(struct file *file, unsigned int cmd,
                          unsigned long arg)
 {
-       if (!capable(CAP_SYS_RESOURCE))
-               return -EPERM;
+       int ret;
+       void __user *argp = (void __user *)arg;
+
+       if (!capable(CAP_SYS_RESOURCE)) {
+               ret = -EPERM;
+               goto out;
+       }
+
+       switch (cmd) {
+               case NANDSIM_IOC_NEW_INSTANCE:
+               {
+                       struct ns_new_instance_req req;
+
+                       ret = copy_from_user(&req, argp, sizeof(struct 
ns_new_instance_req));
+                       if (ret) {
+                               ret = -EFAULT;
+                               goto out;
+                       }
 
-       return -ENOTTY;
+                       ret = ns_ctrl_new_instance(&req, argp + sizeof(req));
+                       break;
+               }
+
+               default:
+                       ret = -ENOTTY;
+       }
+
+out:
+       return ret;
 }
 
 #ifdef CONFIG_COMPAT
-- 
2.8.3