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accel/amdxdna: Use unsigned long for nr_pages in amdxdna_hmm_register()

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nr_pages is declared as u32 in amdxdna_hmm_register(), which may not be
large enough to represent the number of pages for large mappings.

Use unsigned long for nr_pages to avoid potential overflow.

Fixes: ac49797c18 ("accel/amdxdna: Add GEM buffer object management")
Reviewed-by: Max Zhen <max.zhen@amd.com>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://patch.msgid.link/20260616061532.3533469-1-lizhi.hou@amd.com
This commit is contained in:
Lizhi Hou 2026-06-15 23:15:32 -07:00
parent e35c9cf551
commit 18aaebdf43
1 changed files with 1 additions and 1 deletions
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drivers/accel/amdxdna/amdxdna_gem.c
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@ -346,7 +346,7 @@ static int amdxdna_hmm_register(struct amdxdna_gem_obj *abo,
unsigned long len = vma->vm_end - vma->vm_start;
unsigned long addr = vma->vm_start;
struct amdxdna_umap *mapp;
u32 nr_pages;
unsigned long nr_pages;
int ret;
if (!amdxdna_pasid_on(abo->client)) {