[patch 17/26] Fix module refcount leak in __set_personality()

[gregkh]

From: Sergey Vlasov <vsu@xxxxxxxxxxx>

If the change of personality does not lead to change of exec domain,
__set_personality() returned without releasing the module reference
acquired by lookup_exec_domain().

This patch was already included in Linus' tree.

Signed-off-by: Sergey Vlasov <vsu@xxxxxxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
Signed-off-by: Adrian Bunk <bunk@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
 kernel/exec_domain.c |    1 +
 1 file changed, 1 insertion(+)

--- linux-2.6.16.1.orig/kernel/exec_domain.c
+++ linux-2.6.16.1/kernel/exec_domain.c
@@ -140,6 +140,7 @@ __set_personality(u_long personality)
 	ep = lookup_exec_domain(personality);
 	if (ep == current_thread_info()->exec_domain) {
 		current->personality = personality;
+		module_put(ep->module);
 		return 0;
 	}
 

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