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Fixes possible crash if sgv pools destroyed too early.

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Reported by Smadar Gonen <smadar.gn@gmail.com>



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@955 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Vladislav Bolkhovitin
2009-07-14 16:56:07 +00:00
parent d29bd7bc2f
commit dd235af55c
1 changed files with 5 additions and 2 deletions
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7
scst/src/dev_handlers/scst_user.c
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@@ -3094,8 +3094,8 @@ static int dev_user_release(struct inode *inode, struct file *file)
scst_unregister_virtual_device(dev->virt_id);
scst_unregister_virtual_dev_driver(&dev->devtype);
sgv_pool_del(dev->pool_clust);
sgv_pool_del(dev->pool);
sgv_pool_flush(dev->pool_clust);
sgv_pool_flush(dev->pool);
TRACE_DBG("Unregistering finished (dev %p)", dev);
@@ -3106,6 +3106,9 @@ static int dev_user_release(struct inode *inode, struct file *file)
wait_for_completion(&dev->cleanup_cmpl);
sgv_pool_del(dev->pool_clust);
sgv_pool_del(dev->pool);
up_write(&dev->dev_rwsem); /* to make the debug check happy */
TRACE_DBG("Releasing completed (dev %p)", dev);