[POWERPC] spufs: fix memory leak on spufs reloading
When SPU isolation mode enabled, isolated_loader would be allocated by spufs_init_isolated_loader() on module_init(). But anyone do not free it. This patch introduces spufs_exit_isolated_loader() which is the opposite of spufs_init_isolated_loader() and called on module_exit(). Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: NAkinobu Mita <mita@fixstars.com> Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
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