char: mspec: Use kvzalloc() in mspec_mmap()

Use kvzalloc() in mspec_mmap() instead of open-coding it.

Signed-off-by: Denis Efremov <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/char/mspec.c

···
 
 	pages = vma_pages(vma);
 	vdata_size = sizeof(struct vma_data) + pages * sizeof(long);
-	if (vdata_size <= PAGE_SIZE)
-		vdata = kzalloc(vdata_size, GFP_KERNEL);
-	else
-		vdata = vzalloc(vdata_size);
+	vdata = kvzalloc(vdata_size, GFP_KERNEL);
 	if (!vdata)
 		return -ENOMEM;