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mtd: ts5500_flash: avoid calling map_destroy on NULL

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map_destroy dereferences its argument.  The call is furthermore only
reachable when this argument is NULL.  Thus the call is dropped.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression *x;
@@

*if (x == NULL)
{ ...
* map_destroy(x);
  ...
  return ...;
}
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Julia Lawall 2011-02-02 18:13:36 +01:00 committed by David Woodhouse
parent f17f12ce9d
commit 3ee7451a02
1 changed files with 0 additions and 1 deletions
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1
drivers/mtd/maps/ts5500_flash.c
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@ -94,7 +94,6 @@ static int __init init_ts5500_map(void)
return 0;
err1:
map_destroy(mymtd);
iounmap(ts5500_map.virt);
err2:
return rc;