From e64346c6b3d946e4424066d888cb41fe60eb9d88 Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann Date: Fri, 13 Mar 2026 09:29:26 +0100 Subject: [PATCH] test for vm_file before updating file access time --- drivers/gpu/drm/drm_gem_shmem_helper.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_gem_shmem_helper.c b/drivers/gpu/drm/drm_gem_shmem_helper.c index 4500deef4127..7fad72cc01dc 100644 --- a/drivers/gpu/drm/drm_gem_shmem_helper.c +++ b/drivers/gpu/drm/drm_gem_shmem_helper.c @@ -656,7 +656,8 @@ static vm_fault_t drm_gem_shmem_pfn_mkwrite(struct vm_fault *vmf) if (drm_WARN_ON(obj->dev, !shmem->pages || page_offset >= num_pages)) return VM_FAULT_SIGBUS; - file_update_time(vma->vm_file); + if (vma->vm_file) + file_update_time(vma->vm_file); folio_mark_dirty(page_folio(shmem->pages[page_offset])); -- 2.53.0