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drivers/char/mspec.c: use {k,v}zalloc to allocate memory

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Let memory allocator initialize the allocated memory as null, thus remove
the use of memset.

Signed-off-by: Rakib Mullick <rakib.mullick@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Rakib Mullick 2011-05-26 16:25:56 -07:00 committed by Linus Torvalds
parent 074127367a
commit 658c74cf3c
1 changed files with 2 additions and 3 deletions
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5
drivers/char/mspec.c
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@ -271,14 +271,13 @@ mspec_mmap(struct file *file, struct vm_area_struct *vma,
pages = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
vdata_size = sizeof(struct vma_data) + pages * sizeof(long);
if (vdata_size <= PAGE_SIZE)
vdata = kmalloc(vdata_size, GFP_KERNEL);
vdata = kzalloc(vdata_size, GFP_KERNEL);
else {
vdata = vmalloc(vdata_size);
vdata = vzalloc(vdata_size);
flags = VMD_VMALLOCED;
}
if (!vdata)
return -ENOMEM;
memset(vdata, 0, vdata_size);
vdata->vm_start = vma->vm_start;
vdata->vm_end = vma->vm_end;