From: Javier González <jg@lightnvm.io>
Date: Sat, 15 Apr 2017 18:55:39 +0000 (+0200)
Subject: lightnvm: free reverse device map
X-Git-Tag: v4.14-rc1~1015^2~155
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7a3de2b33f5213c423a59aeaaae2249196b4b5cc;p=platform%2Fkernel%2Flinux-rpi3.git

lightnvm: free reverse device map

Free the reverse mapping table correctly on target tear down

Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <matias@cnexlabs.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
---

diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c
index 95105c4..a14c52c 100644
--- a/drivers/lightnvm/core.c
+++ b/drivers/lightnvm/core.c
@@ -411,6 +411,18 @@ err_rmap:
 	return -ENOMEM;
 }
 
+static void nvm_unregister_map(struct nvm_dev *dev)
+{
+	struct nvm_dev_map *rmap = dev->rmap;
+	int i;
+
+	for (i = 0; i < dev->geo.nr_chnls; i++)
+		kfree(rmap->chnls[i].lun_offs);
+
+	kfree(rmap->chnls);
+	kfree(rmap);
+}
+
 static void nvm_map_to_dev(struct nvm_tgt_dev *tgt_dev, struct ppa_addr *p)
 {
 	struct nvm_dev_map *dev_map = tgt_dev->map;
@@ -992,7 +1004,7 @@ void nvm_free(struct nvm_dev *dev)
 	if (dev->dma_pool)
 		dev->ops->destroy_dma_pool(dev->dma_pool);
 
-	kfree(dev->rmap);
+	nvm_unregister_map(dev);
 	kfree(dev->lptbl);
 	kfree(dev->lun_map);
 	kfree(dev);