The patch titled
drivers/spi: move a dereference below a NULL test
has been added to the -mm tree. Its filename is
drivers-spi-move-a-dereference-below-a-null-test.patch
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------------------------------------------------------
Subject: drivers/spi: move a dereference below a NULL test
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>
Acked-by: David Brownell <dbrownell@xxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/spi/pxa2xx_spi.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff -puN drivers/spi/pxa2xx_spi.c~drivers-spi-move-a-dereference-below-a-null-test drivers/spi/pxa2xx_spi.c
--- a/drivers/spi/pxa2xx_spi.c~drivers-spi-move-a-dereference-below-a-null-test
+++ a/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);
_
Patches currently in -mm which might be from julia@xxxxxxx are
origin.patch
linux-next.patch
arch-avr32-eliminate-null-test-and-memset-after-alloc_bootmem.patch
powerpc-powermac-add-missing-of_node_put.patch
net-tipc-bcasth-use-array_size.patch
fs-namespacec-drop-code-after-return.patch
mm-page_allocc-eliminate-null-test-and-memset-after-alloc_bootmem.patch
drivers-macintosh-add-missing-of_node_put-in-therm_adt746xc.patch
drivers-rtc-correct-an-error-test.patch
drivers-isdn-hardware-misdn-move-a-dereference-below-a-null-test.patch
drivers-mmc-move-a-dereference-below-a-null-test.patch
drivers-net-hamradio-6packc-move-a-dereference-below-a-null-test.patch
drivers-net-wireless-libertas-move-a-dereference-below-a-null-test.patch
drivers-scsi-move-a-dereference-below-a-null-test.patch
drivers-spi-move-a-dereference-below-a-null-test.patch
net-bridge-netfilter-move-a-dereference-below-a-null-test.patch
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