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drivers/spi: move a dereference below a NULL test 

In each case, if the NULL test is necessary, then the dereference should be
moved below the NULL test.

The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@
type T;
expression E;
identifier i,fld;
statement S;
@@

- T i = E->fld;
+ T i;
  ... when != E
      when != i
  if (E == NULL) S
+ i = E->fld;
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Julia Lawall 2009-01-06 14:41:45 -08:00 committed by Linus Torvalds
parent ee9c1fbfe1
commit 51e911e276
1 changed files with 2 additions and 1 deletions
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3
drivers/spi/pxa2xx_spi.c
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@ -1561,11 +1561,12 @@ out_error_master_alloc:
static int pxa2xx_spi_remove(struct platform_device *pdev)
{
struct driver_data *drv_data = platform_get_drvdata(pdev);
struct ssp_device *ssp = drv_data->ssp;
struct ssp_device *ssp;
int status = 0;
if (!drv_data)
return 0;
ssp = drv_data->ssp;
/* Remove the queue */
status = destroy_queue(drv_data);