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Subject[PATCH 1/4] mm: Fix sparse, use plain integer as NULL pointer
Date
From: Tobin C Harding <me@tobin.cc>

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

Signed-off-by: Tobin C Harding <me@tobin.cc>
---
mm/memory.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/mm/memory.c b/mm/memory.c
index 6bf2b47..cc5fa12 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2905,7 +2905,7 @@ 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;
}
@@ -2953,7 +2953,7 @@ 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)
@@ -3359,7 +3359,7 @@ 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;
}
--
2.7.4
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