The patch titled
ata: piix, fix pointer deref on suspend
has been removed from the -mm tree. Its filename was
ata-piix-fix-pointer-deref-on-suspend.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: ata: piix, fix pointer deref on suspend
From: Jiri Slaby <jirislaby@xxxxxxxxx>
Commit
ata_piix: add borked Tecra M4 to broken suspend list
introduced DMI variables checking, but they can be null, so that
we possibly dereference null.
Check if they are null and avoid checks in that case.
Solves:
BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
IP: [<ffffffff8043da97>] piix_pci_device_suspend+0x117/0x230
Signed-off-by: Jiri Slaby <jirislaby@xxxxxxxxx>
Cc: Jeff Garzik <jgarzik@xxxxxxxxxx>
Cc: Alexandru Romanescu <a_romanescu@xxxxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/ata/ata_piix.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff -puN drivers/ata/ata_piix.c~ata-piix-fix-pointer-deref-on-suspend drivers/ata/ata_piix.c
--- a/drivers/ata/ata_piix.c~ata-piix-fix-pointer-deref-on-suspend
+++ a/drivers/ata/ata_piix.c
@@ -1072,7 +1072,14 @@ static int piix_broken_suspend(void)
* matching is necessary because dmi_system_id.matches is
* limited to four entries.
*/
- if (!strcmp(dmi_get_system_info(DMI_SYS_VENDOR), "TOSHIBA") &&
+ if (dmi_get_system_info(DMI_SYS_VENDOR) &&
+ dmi_get_system_info(DMI_PRODUCT_NAME) &&
+ dmi_get_system_info(DMI_PRODUCT_VERSION) &&
+ dmi_get_system_info(DMI_PRODUCT_SERIAL) &&
+ dmi_get_system_info(DMI_BOARD_VENDOR) &&
+ dmi_get_system_info(DMI_BOARD_NAME) &&
+ dmi_get_system_info(DMI_BOARD_VERSION) &&
+ !strcmp(dmi_get_system_info(DMI_SYS_VENDOR), "TOSHIBA") &&
!strcmp(dmi_get_system_info(DMI_PRODUCT_NAME), "000000") &&
!strcmp(dmi_get_system_info(DMI_PRODUCT_VERSION), "000000") &&
!strcmp(dmi_get_system_info(DMI_PRODUCT_SERIAL), "000000") &&
_
Patches currently in -mm which might be from jirislaby@xxxxxxxxx are
origin.patch
linux-next.patch
pci-quirks-dont-mark-one-netmos-as-class-other.patch
8250_pci-add-support-for-netmos-9835.patch
reiser4.patch
shrink_slab-handle-bad-shrinkers.patch
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