[PATCH 10/11] drivers/spi: Move a dereference below a NULL test
From: Julia Lawall
Date: Tue Dec 16 2008 - 10:16:11 EST
From: Julia Lawall <julia@xxxxxxx>
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@xxxxxxx>
---
drivers/spi/pxa2xx_spi.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/spi/pxa2xx_spi.c b/drivers/spi/pxa2xx_spi.c
index cf12f2d..fbad7e4 100644
--- 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);
--
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