| From: Dan Carpenter <dan.carpenter@linaro.org> |
| Subject: fs/proc/task_mmu: fix uninitialized variable in pagemap_pmd_range() |
| Date: Thu, 13 Jun 2024 17:34:33 +0300 |
| |
| The "folio" pointer is tested for NULL, but it's either valid or |
| uninitialized. Initialize it to NULL. |
| |
| Link: https://lkml.kernel.org/r/9d6eaba7-92f8-4a70-8765-38a519680a87@moroto.mountain |
| Fixes: 84f57f8b8914 ("fs/proc: move page_mapcount() to fs/proc/internal.h") |
| Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> |
| Acked-by: David Hildenbrand <david@redhat.com> |
| Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com> |
| Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
| --- |
| |
| fs/proc/task_mmu.c | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| --- a/fs/proc/task_mmu.c~fs-proc-move-page_mapcount-to-fs-proc-internalh-fix |
| +++ a/fs/proc/task_mmu.c |
| @@ -1495,7 +1495,7 @@ static int pagemap_pmd_range(pmd_t *pmdp |
| u64 flags = 0, frame = 0; |
| pmd_t pmd = *pmdp; |
| struct page *page = NULL; |
| - struct folio *folio; |
| + struct folio *folio = NULL; |
| |
| if (vma->vm_flags & VM_SOFTDIRTY) |
| flags |= PM_SOFT_DIRTY; |
| _ |
