wan/fsl_ucc_hdlc: Fix size used in dma_free_coherent()
authorChristophe Jaillet <christophe.jaillet@wanadoo.fr>
Fri, 7 Oct 2016 20:58:47 +0000 (22:58 +0200)
committerDavid S. Miller <davem@davemloft.net>
Sat, 8 Oct 2016 04:04:48 +0000 (00:04 -0400)
commit776482cd8d8af063878ed22a1a0d44e4c6238a94
tree5c3eae9946c74dd3fc456dd965c4b88b42cee8b2
parentfa6114d4bde70152765ba1c35fed4fcd8481faf6
wan/fsl_ucc_hdlc: Fix size used in dma_free_coherent()

Size used with 'dma_alloc_coherent()' and 'dma_free_coherent()' should be
consistent.
Here, the size of a pointer is used in dma_alloc... and the size of the
pointed structure is used in dma_free...

This has been spotted with coccinelle, using the following script:
////////////////////
@r@
expression x0, x1, y0, y1, z0, z1, t0, t1, ret;
@@

*   ret = dma_alloc_coherent(x0, y0, z0, t0);
    ...
*   dma_free_coherent(x1, y1, ret, t1);

@script:python@
y0 << r.y0;
y1 << r.y1;

@@
if y1.find(y0) == -1:
 print "WARNING: sizes look different:  '%s'   vs   '%s'" % (y0, y1)
////////////////////

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/wan/fsl_ucc_hdlc.c