powerpc/cacheinfo: Fix kobject memleak
Currently error return from kobject_init_and_add() is not followed by a call to kobject_put(). This means there is a memory leak. Add call to kobject_put() in error path of kobject_init_and_add(). Signed-off-by: NTobin C. Harding <tobin@kernel.org> Reviewed-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: NTyrel Datwyler <tyreld@linux.ibm.com> Signed-off-by: NMichael Ellerman <mpe@ellerman.id.au>
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