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>

diff --git a/drivers/spi/pxa2xx_spi.c b/drivers/spi/pxa2xx_spi.c
index 6104f461a3cdf564e6476c8e49a6dd69a851052d..d0fc4ca2f656abb56d263284bde5a311ff2e6acd 100644 (file)
--- a/drivers/spi/pxa2xx_spi.c
+++ b/drivers/spi/pxa2xx_spi.c
@@ -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);