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authorScott Bauer <scott.bauer@intel.com>2017-02-22 10:15:06 -0700
committerJens Axboe <axboe@fb.com>2017-02-23 11:55:41 -0700
commit7d6d15789d69856f1c5405e106a773c87277eb8c (patch)
tree7ae43ae226e85c4db783756a3c07f14ed1dbd0cf /block/sed-opal.c
parent124298bd03acebd9c9da29a794718aca31bec1f7 (diff)
downloadlinux-0-day-7d6d15789d69856f1c5405e106a773c87277eb8c.tar.gz
block/sed-opal: Introduce free_opal_dev to free the structure and clean up state
Before we free the opal structure we need to clean up any saved locking ranges that the user had told us to unlock from a suspend. Signed-off-by: Scott Bauer <scott.bauer@intel.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block/sed-opal.c')
-rw-r--r--block/sed-opal.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/block/sed-opal.c b/block/sed-opal.c
index 8935575..020bf3e 100644
--- a/block/sed-opal.c
+++ b/block/sed-opal.c
@@ -1987,6 +1987,28 @@ static int check_opal_support(struct opal_dev *dev)
return ret;
}
+static void clean_opal_dev(struct opal_dev *dev)
+{
+
+ struct opal_suspend_data *suspend, *next;
+
+ mutex_lock(&dev->dev_lock);
+ list_for_each_entry_safe(suspend, next, &dev->unlk_lst, node) {
+ list_del(&suspend->node);
+ kfree(suspend);
+ }
+ mutex_unlock(&dev->dev_lock);
+}
+
+void free_opal_dev(struct opal_dev *dev)
+{
+ if (!dev)
+ return;
+ clean_opal_dev(dev);
+ kfree(dev);
+}
+EXPORT_SYMBOL(free_opal_dev);
+
struct opal_dev *init_opal_dev(void *data, sec_send_recv *send_recv)
{
struct opal_dev *dev;
@@ -2141,6 +2163,14 @@ static int opal_reverttper(struct opal_dev *dev, struct opal_key *opal)
setup_opal_dev(dev, revert_steps);
ret = next(dev);
mutex_unlock(&dev->dev_lock);
+
+ /*
+ * If we successfully reverted lets clean
+ * any saved locking ranges.
+ */
+ if (!ret)
+ clean_opal_dev(dev);
+
return ret;
}