drivers/spi: move a dereference below a NULL test
Author: Julia Lawall <julia@diku.dk>
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/)
//
@@
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;
//
Signed-off-by: Julia Lawall
Acked-by: David Brownell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
---
drivers/spi/pxa2xx_spi.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/spi/pxa2xx_spi.c b/drivers/spi/pxa2xx_spi.c
index 6104f46..d0fc4ca 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); |
---
drivers/spi/pxa2xx_spi.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/spi/pxa2xx_spi.c b/drivers/spi/pxa2xx_spi.c
index 6104f46..d0fc4ca 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);