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This commit is contained in:
Andy Ritger
2022-11-22 10:04:21 -08:00
parent fe0728787f
commit c700e8f91c
34 changed files with 368 additions and 108 deletions
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6
kernel-open/nvidia-drm/nvidia-drm-gem-nvkms-memory.c
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@@ -95,7 +95,11 @@ static vm_fault_t __nv_drm_gem_nvkms_handle_vma_fault(
pfn >>= PAGE_SHIFT;
pfn += page_offset;
} else {
BUG_ON(page_offset > nv_nvkms_memory->pages_count);
BUG_ON(page_offset >= nv_nvkms_memory->pages_count);
pfn = page_to_pfn(nv_nvkms_memory->pages[page_offset]);
}

6
kernel-open/nvidia-drm/nvidia-drm-gem-user-memory.c
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@@ -112,7 +112,11 @@ static vm_fault_t __nv_drm_gem_user_memory_handle_vma_fault(
page_offset = vmf->pgoff - drm_vma_node_start(&gem->vma_node);
BUG_ON(page_offset > nv_user_memory->pages_count);
BUG_ON(page_offset >= nv_user_memory->pages_count);
ret = vm_insert_page(vma, address, nv_user_memory->pages[page_offset]);
switch (ret) {

10
kernel-open/nvidia-drm/nvidia-drm-linux.c
View File

@@ -47,6 +47,16 @@ module_param_named(modeset, nv_drm_modeset_module_param, bool, 0400);
void *nv_drm_calloc(size_t nmemb, size_t size)
{
size_t total_size = nmemb * size;
//
// Check for overflow.
//
if ((nmemb != 0) && ((total_size / nmemb) != size))
{
return NULL;
}
return kzalloc(nmemb * size, GFP_KERNEL);
}