From f2d8bdc62ef779a632615b8a4be90009517f457a Mon Sep 17 00:00:00 2001
From: Chunwei Chen <tuxoko@gmail.com>
Date: Wed, 14 Dec 2016 09:41:39 -0800
Subject: [PATCH] Add ida_destroy in zvol_fini to fix memleak

User of ida needs to call ida_destroy after using it. Otherwise
ida->free_bitmap and/or other stuff may leak.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Chunwei Chen <david.chen@osnexus.com>
Closes #5484
---
 module/zfs/zvol.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/module/zfs/zvol.c b/module/zfs/zvol.c
index 2c99b73c2fa9..7674b3148781 100644
--- a/module/zfs/zvol.c
+++ b/module/zfs/zvol.c
@@ -2085,6 +2085,8 @@ zvol_fini(void)
 
 	list_destroy(&zvol_state_list);
 	mutex_destroy(&zvol_state_lock);
+
+	ida_destroy(&zvol_ida);
 }
 
 /* BEGIN CSTYLED */