[ Upstream commit 18dbfcdedc802f9500b2c29794f22a31d27639c0 ] Commit 930914b7d5 ("powerpc/xive: Add a debugfs file to dump internal XIVE state") forgot to add a null check. Add it. Fixes: 930914b7d5 ("powerpc/xive: Add a debugfs file to dump internal XIVE state") Signed-off-by: Ammar Faizi <ammarfaizi2@gmail.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20211226135314.251221-1-ammar.faizi@intel.com Signed-off-by: Sasha Levin <sashal@kernel.org>
930914b7d5