[patch] drm/amd/powerplay: fix a reversed condition

[Dan Carpenter]

This test was reversed so it would end up leading to a NULL dereference.

Fixes: 4630f0faae80 ('drm/amd/powerplay: add Carrizo smu support')
Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>

diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/cz_smumgr.c 
b/drivers/gpu/drm/amd/powerplay/smumgr/cz_smumgr.c
index e74023b..873a8d2 100644
--- a/drivers/gpu/drm/amd/powerplay/smumgr/cz_smumgr.c
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/cz_smumgr.c
@@ -818,7 +818,7 @@ static int cz_smu_fini(struct pp_smumgr *smumgr)
                return -EINVAL;

        cz_smu = (struct cz_smumgr *)smumgr->backend;
-       if (!cz_smu) {
+       if (cz_smu) {
                cgs_free_gpu_mem(smumgr->device,
                                cz_smu->toc_buffer.handle);
                cgs_free_gpu_mem(smumgr->device,