drm/vc4: Return an ERR_PTR from BO creation instead of NULL.

Fixes igt vc4_create_bo/create-bo-0 by returning -EINVAL from the
ioctl instead of -ENOMEM.

Signed-off-by: Eric Anholt <eric@anholt.net>

diff --git a/drivers/gpu/drm/vc4/vc4_bo.c b/drivers/gpu/drm/vc4/vc4_bo.c
index 18dfe3e..22278bc 100644 (file)
--- a/drivers/gpu/drm/vc4/vc4_bo.c
+++ b/drivers/gpu/drm/vc4/vc4_bo.c
@@ -215,7 +215,7 @@ struct vc4_bo *vc4_bo_create(struct drm_device *dev, size_t unaligned_size,
        struct drm_gem_cma_object *cma_obj;
 
        if (size == 0)
-               return NULL;
+               return ERR_PTR(-EINVAL);
 
        /* First, try to get a vc4_bo from the kernel BO cache. */
        if (from_cache) {
@@ -237,7 +237,7 @@ struct vc4_bo *vc4_bo_create(struct drm_device *dev, size_t unaligned_size,
                if (IS_ERR(cma_obj)) {
                        DRM_ERROR("Failed to allocate from CMA:\n");
                        vc4_bo_stats_dump(vc4);
-                       return NULL;
+                       return ERR_PTR(-ENOMEM);
                }
        }
 
@@ -259,8 +259,8 @@ int vc4_dumb_create(struct drm_file *file_priv,
                args->size = args->pitch * args->height;
 
        bo = vc4_bo_create(dev, args->size, false);
-       if (!bo)
-               return -ENOMEM;
+       if (IS_ERR(bo))
+               return PTR_ERR(bo);
 
        ret = drm_gem_handle_create(file_priv, &bo->base.base, &args->handle);
        drm_gem_object_unreference_unlocked(&bo->base.base);
@@ -443,8 +443,8 @@ int vc4_create_bo_ioctl(struct drm_device *dev, void *data,
         * get zeroed, and that might leak data between users.
         */
        bo = vc4_bo_create(dev, args->size, false);
-       if (!bo)
-               return -ENOMEM;
+       if (IS_ERR(bo))
+               return PTR_ERR(bo);
 
        ret = drm_gem_handle_create(file_priv, &bo->base.base, &args->handle);
        drm_gem_object_unreference_unlocked(&bo->base.base);
@@ -496,8 +496,8 @@ vc4_create_shader_bo_ioctl(struct drm_device *dev, void *data,
        }
 
        bo = vc4_bo_create(dev, args->size, true);
-       if (!bo)
-               return -ENOMEM;
+       if (IS_ERR(bo))
+               return PTR_ERR(bo);
 
        ret = copy_from_user(bo->base.vaddr,
                             (void __user *)(uintptr_t)args->data,

diff --git a/drivers/gpu/drm/vc4/vc4_gem.c b/drivers/gpu/drm/vc4/vc4_gem.c
index cc89ffc..3bf679d 100644 (file)
--- a/drivers/gpu/drm/vc4/vc4_gem.c
+++ b/drivers/gpu/drm/vc4/vc4_gem.c
@@ -578,9 +578,9 @@ vc4_get_bcl(struct drm_device *dev, struct vc4_exec_info *exec)
        }
 
        bo = vc4_bo_create(dev, exec_size, true);
-       if (!bo) {
+       if (IS_ERR(bo)) {
                DRM_ERROR("Couldn't allocate BO for binning\n");
-               ret = -ENOMEM;
+               ret = PTR_ERR(bo);
                goto fail;
        }
        exec->exec_bo = &bo->base;

diff --git a/drivers/gpu/drm/vc4/vc4_irq.c b/drivers/gpu/drm/vc4/vc4_irq.c
index b68060e..78a2135 100644 (file)
--- a/drivers/gpu/drm/vc4/vc4_irq.c
+++ b/drivers/gpu/drm/vc4/vc4_irq.c
@@ -57,7 +57,7 @@ vc4_overflow_mem_work(struct work_struct *work)
        struct vc4_bo *bo;
 
        bo = vc4_bo_create(dev, 256 * 1024, true);
-       if (!bo) {
+       if (IS_ERR(bo)) {
                DRM_ERROR("Couldn't allocate binner overflow mem\n");
                return;
        }

diff --git a/drivers/gpu/drm/vc4/vc4_render_cl.c b/drivers/gpu/drm/vc4/vc4_render_cl.c
index dea97f4..0f12418 100644 (file)
--- a/drivers/gpu/drm/vc4/vc4_render_cl.c
+++ b/drivers/gpu/drm/vc4/vc4_render_cl.c
@@ -316,8 +316,8 @@ static int vc4_create_rcl_bo(struct drm_device *dev, struct vc4_exec_info *exec,
        size += xtiles * ytiles * loop_body_size;
 
        setup->rcl = &vc4_bo_create(dev, size, true)->base;
-       if (!setup->rcl)
-               return -ENOMEM;
+       if (IS_ERR(setup->rcl))
+               return PTR_ERR(setup->rcl);
        list_add_tail(&to_vc4_bo(&setup->rcl->base)->unref_head,
                      &exec->unref_list);
 

diff --git a/drivers/gpu/drm/vc4/vc4_validate.c b/drivers/gpu/drm/vc4/vc4_validate.c
index e26d9f6..24c2c74 100644 (file)
--- a/drivers/gpu/drm/vc4/vc4_validate.c
+++ b/drivers/gpu/drm/vc4/vc4_validate.c
@@ -401,8 +401,8 @@ validate_tile_binning_config(VALIDATE_ARGS)
        tile_bo = vc4_bo_create(dev, exec->tile_alloc_offset + tile_alloc_size,
                                true);
        exec->tile_bo = &tile_bo->base;
-       if (!exec->tile_bo)
-               return -ENOMEM;
+       if (IS_ERR(exec->tile_bo))
+               return PTR_ERR(exec->tile_bo);
        list_add_tail(&tile_bo->unref_head, &exec->unref_list);
 
        /* tile alloc address. */