[PATCH 1/2] drm/panthor: Don't check the array stride on empty uobj arrays

[Boris Brezillon]

The user is likely to leave all the drm_panthor_obj_array fields
to zero when the array is empty, which will cause an EINVAL failure.

Fixes: 4bdca1150792 ("drm/panthor: Add the driver frontend block")
Signed-off-by: Boris Brezillon <boris.brezil...@collabora.com>
---
 drivers/gpu/drm/panthor/panthor_drv.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/panthor/panthor_drv.c 
b/drivers/gpu/drm/panthor/panthor_drv.c
index b8a84f26b3ef..b5e7b919f241 100644
--- a/drivers/gpu/drm/panthor/panthor_drv.c
+++ b/drivers/gpu/drm/panthor/panthor_drv.c
@@ -86,15 +86,15 @@ panthor_get_uobj_array(const struct drm_panthor_obj_array 
*in, u32 min_stride,
        int ret = 0;
        void *out_alloc;
 
+       if (!in->count)
+               return NULL;
+
        /* User stride must be at least the minimum object size, otherwise it 
might
         * lack useful information.
         */
        if (in->stride < min_stride)
                return ERR_PTR(-EINVAL);
 
-       if (!in->count)
-               return NULL;
-
        out_alloc = kvmalloc_array(in->count, obj_size, GFP_KERNEL);
        if (!out_alloc)
                return ERR_PTR(-ENOMEM);
-- 
2.45.0