[Cbe-oss-dev] [PATCH] fix memory leak on spufs reloading

[Akinobu Mita]

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 at arndb.de>
Signed-off-by: Akinobu Mita <mita at fixstars.com>

---
 arch/powerpc/platforms/cell/spufs/inode.c |    6 ++++++
 1 file changed, 6 insertions(+)

Index: 2.6-git-ps3/arch/powerpc/platforms/cell/spufs/inode.c
===================================================================
--- 2.6-git-ps3.orig/arch/powerpc/platforms/cell/spufs/inode.c
+++ 2.6-git-ps3/arch/powerpc/platforms/cell/spufs/inode.c
@@ -560,6 +560,11 @@ spufs_parse_options(char *options, struc
 	return 1;
 }
 
+static void spufs_exit_isolated_loader(void)
+{
+	kfree(isolated_loader);
+}
+
 static void
 spufs_init_isolated_loader(void)
 {
@@ -693,6 +698,7 @@ module_init(spufs_init);
 static void __exit spufs_exit(void)
 {
 	spu_sched_exit();
+	spufs_exit_isolated_loader();
 	unregister_arch_coredump_calls(&spufs_coredump_calls);
 	unregister_spu_syscalls(&spufs_calls);
 	unregister_filesystem(&spufs_type);