The patch titled
drivers/video: Move dereference after NULL test
has been added to the -mm tree. Its filename is
drivers-video-move-dereference-after-null-test.patch
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See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
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The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: drivers/video: Move dereference after NULL test
From: Julia Lawall <julia@xxxxxxx>
If the NULL test on fbi is needed, then the dereference should be after the
NULL test.
A simplified version of the semantic match that detects this problem is as
follows (http://coccinelle.lip6.fr/):
// <smpl>
@match exists@
expression x, E;
identifier fld;
@@
* x->fld
... when != \(x = E\|&x\)
* x == NULL
// </smpl>
Signed-off-by: Julia Lawall <julia@xxxxxxx>
Cc: Krzysztof Helt <krzysztof.h1@xxxxxxxxx>
Cc: Eric Miao <eric.y.miao@xxxxxxxxx>
Cc: Daniel Mack <daniel@xxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/video/pxafb.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff -puN drivers/video/pxafb.c~drivers-video-move-dereference-after-null-test drivers/video/pxafb.c
--- a/drivers/video/pxafb.c~drivers-video-move-dereference-after-null-test
+++ a/drivers/video/pxafb.c
@@ -1208,13 +1208,14 @@ static void setup_smart_timing(struct px
static int pxafb_smart_thread(void *arg)
{
struct pxafb_info *fbi = arg;
- struct pxafb_mach_info *inf = fbi->dev->platform_data;
+ struct pxafb_mach_info *inf;
- if (!fbi || !inf->smart_update) {
+ if (!fbi || !fbi->dev->platform_data->smart_update) {
pr_err("%s: not properly initialized, thread terminated\n",
__func__);
return -EINVAL;
}
+ inf = fbi->dev->platform_data;
pr_debug("%s(): task starting\n", __func__);
_
Patches currently in -mm which might be from julia@xxxxxxx are
origin.patch
linux-next.patch
drivers-scsi-libsas-use-sam_good.patch
drivers-block-dac960c-use-dac960_v2_controller.patch
drivers-char-ipmi-use-kcs_idle_state.patch
drivers-message-move-dereference-after-null-test.patch
drivers-acpi-move-dereference-after-null-test.patch
drivers-media-video-move-dereference-after-null-test.patch
drivers-mmc-move-dereference-after-null-test.patch
drivers-cpuidle-move-dereference-after-null-test.patch
drivers-video-move-dereference-after-null-test.patch
drivers-ata-libata-move-dereference-after-null-test.patch
drivers-scsi-remove-unnecessary-null-test.patch
arch-arm-plat-omap-drop-an-unnecessary-null-test.patch
arch-arm-plat-s3c24xx-move-dereference-after-null-test.patch
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