UBI: add ioctl for unmap operation

[pandora-kernel.git] / drivers / mtd / ubi / cdev.c

diff --git a/drivers/mtd/ubi/cdev.c b/drivers/mtd/ubi/cdev.c
index 01d48ef..4cc31cf 100644 (file)
--- a/drivers/mtd/ubi/cdev.c
+++ b/drivers/mtd/ubi/cdev.c
@@ -536,13 +536,26 @@ static int vol_cdev_ioctl(struct inode *inode, struct file *file,
                err = ubi_leb_map(desc, req.lnum, req.dtype);
                break;
        }
+
+       /* Logical eraseblock un-map command */
+       case UBI_IOCEBUNMAP:
+       {
+               int32_t lnum;
+
+               err = get_user(lnum, (__user int32_t *)argp);
+               if (err) {
+                       err = -EFAULT;
+                       break;
+               }
+               err = ubi_leb_unmap(desc, lnum);
+               break;
+       }
 #endif
 
        default:
                err = -ENOTTY;
                break;
        }
-
        return err;
 }