KVM: PPC: Book3S HV: Check return value of kvmppc_radix_init

[ Upstream commit 69ab6ac380a00244575de02c406dcb9491bf3368 ]

The return of the function is being shadowed by the call to
kvmppc_uvmem_init.

Fixes: ca9f494267 ("KVM: PPC: Book3S HV: Support for running secure guests")
Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220125155735.1018683-2-farosas@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

arch/powerpc/kvm/book3s_hv.c

@@ -5752,8 +5752,11 @@ static int kvmppc_book3s_init_hv(void)
 	if (r)
 		return r;
 
-	if (kvmppc_radix_possible())
+	if (kvmppc_radix_possible()) {
 		r = kvmppc_radix_init();
+		if (r)
+			return r;
+	}
 
 	/*
 	 * POWER9 chips before version 2.02 can't have some threads in