[PATCH] eCryptFS: fix missed mutex_unlock

[Cyrill Gorcunov]

---

Ingo, could you please apply it and test? Actually I really doubt if it help
with the locking problem you pointed. There are two procedures
in miscrev.c - ecryptfs_miscdev_poll() and ecryptfs_miscdev_read()
which takes/releases mutexes in a bit strange way... investigating,
but this patch is needed anyway.

Index: linux-2.6.git/fs/ecryptfs/crypto.c
===================================================================
--- linux-2.6.git.orig/fs/ecryptfs/crypto.c	2008-05-18 16:44:20.000000000 +0400
+++ linux-2.6.git/fs/ecryptfs/crypto.c	2008-05-18 17:56:12.000000000 +0400
@@ -1903,6 +1903,7 @@ int ecryptfs_get_tfm_and_mutex_for_ciphe
 		if (rc) {
 			printk(KERN_ERR "Error adding new key_tfm to list; "
 					"rc = [%d]\n", rc);
+			mutex_unlock(&key_tfm_list_mutex);
 			goto out;
 		}
 	}
--
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