drm/nouveau/acr: fix a couple NULL vs IS_ERR() checks

The nvkm_acr_lsfw_add() function never returns NULL.  It returns error
pointers on error.

Fixes: 22dcda45a3d1 ("drm/nouveau/acr: implement new subdev to replace "secure boot"")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211118111314.GB1147@kili

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gm200.c b/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gm200.c
index cdb1ead..82b4c8e 100644 (file)
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gm200.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gm200.c
@@ -207,11 +207,13 @@ int
 gm200_acr_wpr_parse(struct nvkm_acr *acr)
 {
        const struct wpr_header *hdr = (void *)acr->wpr_fw->data;
+       struct nvkm_acr_lsfw *lsfw;
 
        while (hdr->falcon_id != WPR_HEADER_V0_FALCON_ID_INVALID) {
                wpr_header_dump(&acr->subdev, hdr);
-               if (!nvkm_acr_lsfw_add(NULL, acr, NULL, (hdr++)->falcon_id))
-                       return -ENOMEM;
+               lsfw = nvkm_acr_lsfw_add(NULL, acr, NULL, (hdr++)->falcon_id);
+               if (IS_ERR(lsfw))
+                       return PTR_ERR(lsfw);
        }
 
        return 0;

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gp102.c b/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gp102.c
index fb9132a..fd97a93 100644 (file)
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gp102.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gp102.c
@@ -161,11 +161,13 @@ int
 gp102_acr_wpr_parse(struct nvkm_acr *acr)
 {
        const struct wpr_header_v1 *hdr = (void *)acr->wpr_fw->data;
+       struct nvkm_acr_lsfw *lsfw;
 
        while (hdr->falcon_id != WPR_HEADER_V1_FALCON_ID_INVALID) {
                wpr_header_v1_dump(&acr->subdev, hdr);
-               if (!nvkm_acr_lsfw_add(NULL, acr, NULL, (hdr++)->falcon_id))
-                       return -ENOMEM;
+               lsfw = nvkm_acr_lsfw_add(NULL, acr, NULL, (hdr++)->falcon_id);
+               if (IS_ERR(lsfw))
+                       return PTR_ERR(lsfw);
        }
 
        return 0;