[RTEMS Project] #4287: gr_rasta_adcdac.c: Unchecked return value from library error spotted by Coverity

[RTEMS trac]

#4287: gr_rasta_adcdac.c: Unchecked return value from library error spotted by
Coverity
------------------------+--------------------
  Reporter:  Ryan Long  |      Owner:  (none)
      Type:  defect     |     Status:  new
  Priority:  normal     |  Milestone:  6.1
 Component:  bsps       |    Version:  6
  Severity:  normal     |   Keywords:
Blocked By:             |   Blocking:
------------------------+--------------------
 CID 1399780: Unchecked return value from library in
 gr_rasta_adcdac_init1().

 {{{
 396        strcpy(priv->prefix, "/dev/rastaadcdac0");
 397        priv->prefix[16] += dev->minor_drv;
    CID 1399780 (#1 of 1): Unchecked return value from library
 (CHECKED_RETURN)2. check_return: Calling mkdir(priv->prefix, 511U) without
 checking return value. This library function may fail and return an error
 code. [Note: The source code implementation of the function has been
 overridden by a builtin model.]
 398        mkdir(priv->prefix, S_IRWXU | S_IRWXG | S_IRWXO);
 399        priv->prefix[17] = '/';
 400        priv->prefix[18] = '\0';
 }}}

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Ticket URL: <http://devel.rtems.org/ticket/4287>
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