drivers/dma: 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 <Julia.Lawall@lip6.fr>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

path: root/hdaps-tux.h

#ifndef _HDAPS_TUX_H_
#define _HDAPS_TUX_H_

#define POSITION_FILE "/sys/devices/platform/hdaps/position"
#define TUX_FILE "tux.bmp"

/* UI constants */
#define W_WIDTH 480
#define W_HEIGHT 480

/* Polling constants */
#define TIMEOUT_VAL 15

#ifdef DEBUG
#define dprintf(fmt, args...) fprintf(stderr, fmt, ##args)
#else
#define dprintf(fmt, args...)
#endif /* DEBUG */

#endif /* _HDAPS_TUX_H_ */