[PATCH] drm/panthor: check bo offset alignment in vm bind

[Chia-I Wu]

Fail early from panthor_vm_bind_prepare_op_ctx instead of late from
ops->map_pages.

Signed-off-by: Chia-I Wu <olva...@gmail.com>
Reviewed-by: Boris Brezillon <boris.brezil...@collabora.com>
---
 drivers/gpu/drm/panthor/panthor_mmu.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/panthor/panthor_mmu.c 
b/drivers/gpu/drm/panthor/panthor_mmu.c
index bad720f23eb70..6dec4354e3789 100644
--- a/drivers/gpu/drm/panthor/panthor_mmu.c
+++ b/drivers/gpu/drm/panthor/panthor_mmu.c
@@ -1222,7 +1222,7 @@ static int panthor_vm_prepare_map_op_ctx(struct 
panthor_vm_op_ctx *op_ctx,
            (flags & DRM_PANTHOR_VM_BIND_OP_TYPE_MASK) != 
DRM_PANTHOR_VM_BIND_OP_TYPE_MAP)
                return -EINVAL;
 
-       /* Make sure the VA and size are aligned and in-bounds. */
+       /* Make sure the VA and size are in-bounds. */
        if (size > bo->base.base.size || offset > bo->base.base.size - size)
                return -EINVAL;
 
@@ -2447,7 +2447,7 @@ panthor_vm_bind_prepare_op_ctx(struct drm_file *file,
        int ret;
 
        /* Aligned on page size. */
-       if (!IS_ALIGNED(op->va | op->size, vm_pgsz))
+       if (!IS_ALIGNED(op->va | op->size | op->bo_offset, vm_pgsz))
                return -EINVAL;
 
        switch (op->flags & DRM_PANTHOR_VM_BIND_OP_TYPE_MASK) {
-- 
2.51.0.318.gd7df087d1a-goog