thermal: exynos: fix error return code
thermal: exynos: fix error return code

Set the return variable to an error code as done elsewhere in the function.

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

// <smpl>
(
if@p1 (\(ret < 0\|ret != 0\))
 { ... return ret; }
|
ret@p1 = 0
)
... when != ret = e1
    when != &ret
*if(...)
{
  ... when != ret = e2
      when forall
 return ret;
}

// </smpl>

Signed-off-by: Julia Lawall <3d4a3affaf9163789962e9770780389962bda29d@lip6.fr>
Reviewed-by: Jingoo Han <fc379137a64feb86ce38ec5811a14280acc1ccfc@samsung.com>
Signed-off-by: Zhang Rui <f2a4cf793007be8f81a774dc7806c1ffea7b4a2c@intel.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs