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mm/memory.c: use NULL instead of literal 0

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Patch fixes sparse warning: Using plain integer as NULL pointer.
Replaces assignment of 0 to pointer with NULL assignment.

Link: http://lkml.kernel.org/r/1485992240-10986-2-git-send-email-me@tobin.cc
Signed-off-by: Tobin C Harding <me@tobin.cc>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Tobin C Harding 2017-02-24 14:58:59 -08:00 • committed by Linus Torvalds
parent f2bf14d14d
commit 7f2b6ce8e3
1 changed files with 3 additions and 3 deletions
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6
mm/memory.c
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@ -2920,7 +2920,7 @@ static int pte_alloc_one_map(struct vm_fault *vmf)
atomic_long_inc(&vma->vm_mm->nr_ptes);
pmd_populate(vma->vm_mm, vmf->pmd, vmf->prealloc_pte);
spin_unlock(vmf->ptl);
vmf->prealloc_pte = 0;
vmf->prealloc_pte = NULL;
} else if (unlikely(pte_alloc(vma->vm_mm, vmf->pmd, vmf->address))) {
return VM_FAULT_OOM;
}
@ -2968,7 +2968,7 @@ static void deposit_prealloc_pte(struct vm_fault *vmf)
* count that as nr_ptes.
*/
atomic_long_inc(&vma->vm_mm->nr_ptes);
vmf->prealloc_pte = 0;
vmf->prealloc_pte = NULL;
}
static int do_set_pmd(struct vm_fault *vmf, struct page *page)
@ -3374,7 +3374,7 @@ static int do_fault(struct vm_fault *vmf)
/* preallocated pagetable is unused: free it */
if (vmf->prealloc_pte) {
pte_free(vma->vm_mm, vmf->prealloc_pte);
vmf->prealloc_pte = 0;
vmf->prealloc_pte = NULL;
}
return ret;
}