PCI/P2PDMA: Drop double zeroing for sg_init_table()

sg_init_table() zeroes its first argument, so the allocation of that
argument doesn't have to.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

  // <smpl>
  @@
  expression x;
  @@

  x =
  - kzalloc
  + kmalloc
   (...)
  ...
  sg_init_table(x,...)
  // </smpl>

Link: https://lore.kernel.org/r/1600601186-7420-15-git-send-email-Julia.Lawall@inria.fr
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

diff --git a/drivers/pci/p2pdma.c b/drivers/pci/p2pdma.c
index a3c2ae88ebf46d4b0cd85825cf47b895812a7d0f..85fc9936fa9eeb41656e417989897680416da5d7 100644 (file)
--- a/drivers/pci/p2pdma.c
+++ b/drivers/pci/p2pdma.c
@@ -761,7 +761,7 @@ struct scatterlist *pci_p2pmem_alloc_sgl(struct pci_dev *pdev,
        struct scatterlist *sg;
        void *addr;
 
-       sg = kzalloc(sizeof(*sg), GFP_KERNEL);
+       sg = kmalloc(sizeof(*sg), GFP_KERNEL);
        if (!sg)
                return NULL;