This patch converts the module_mutex semaphore to a mutex.

Signed-off-by: Ashutosh Naik <ashutosh.naik@gmail.com>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>