KVM: PPC: Book3S: Remove redundant initialization of variable ret

The variable ret is being initialized with '-ENOMEM' that is meaningless.
So remove it.

Signed-off-by: Jing Xiangfeng <[e-mail]>
Reviewed-by: Fabiano Rosas <[e-mail]>
Signed-off-by: Paul Mackerras <[e-mail]>

arch/powerpc/kvm/book3s_64_vio.c

···
 	struct kvmppc_spapr_tce_table *siter;
 	struct mm_struct *mm = kvm->mm;
 	unsigned long npages, size = args->size;
-	int ret = -ENOMEM;
+	int ret;
 
 	if (!args->size || args->page_shift < 12 || args->page_shift > 34 ||
 		(args->offset + args->size > (ULLONG_MAX >> args->page_shift)))