tree b335afa0e47f47ea547035b9bb416de0bfcb42f7
parent 9421ce10ad87f799263bddad74b91e2166f020a1
author Julia Lawall <Julia.Lawall@lip6.fr> 1428235596 +0200
committer Samuel Ortiz <sameo@linux.intel.com> 1428276137 +0200

NFC: pn533: fix error return code

Return a negative error code on failure.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
identifier ret; expression e1,e2;
@@
(
if (\(ret < 0\|ret != 0\))
 { ... return ret; }
|
ret = 0
)
... when != ret = e1
    when != &ret
*if(...)
{
  ... when != ret = e2
      when forall
 return ret;
}
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>