linux/drivers/char
Jesper Juhl f334ac8da8 tpm: Do not dereference NULL pointer if acpi_os_map_memory() fails.
In drivers/char/tpm/tpm_acpi.c::read_log() we call
acpi_os_map_memory(). That call may fail for a number of reasons
(invalid address, out of memory etc). If the call fails it returns
NULL and we just pass that to memcpy() unconditionally, which will go
bad when it tries to dereference the pointer.

Unfortunately we just get NULL back, so we can't really tell the user
exactely what went wrong, but we can at least avoid crashing and
return an error (-EIO seemed more generic and more suitable here than
-ENOMEM or something else, so I picked that).

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
2012-08-22 16:23:34 -05:00
..
agp drm/i915: add more Haswell PCI IDs 2012-08-07 13:17:33 +02:00
hw_random hw_random: add support for the TPM chip as a hardware RNG source 2012-08-22 11:11:41 -05:00
ipmi char/ipmi: remove local ioctl defines replaced by generic ones 2012-07-23 12:48:04 +02:00
mwave Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
pcmcia Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
tpm tpm: Do not dereference NULL pointer if acpi_os_map_memory() fails. 2012-08-22 16:23:34 -05:00
xilinx_hwicap xilinx_hwicap: reset XHI_MAX_RETRIES 2012-04-19 19:09:18 -07:00
apm-emulation.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/apm 2012-04-05 17:34:30 -07:00
applicom.c
applicom.h
bfin-otp.c
bsr.c powerpc/BSR: cleanup the error path of bsr_init 2012-07-17 10:27:38 -07:00
ds1302.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
ds1620.c
dsp56k.c
dtlk.c
efirtc.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
generic_nvram.c drivers: fix up various ->llseek() implementations 2011-07-20 20:47:58 -04:00
genrtc.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
hangcheck-timer.c
hpet.c printk(): add KERN_CONT where needed in hpet and vt code 2012-04-09 10:30:39 -07:00
i8k.c module_param: make bool parameters really bool (drivers & misc) 2012-01-13 09:32:20 +10:30
Kconfig ramoops: Move to fs/pstore/ram.c 2012-05-16 08:06:37 -07:00
lp.c Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-03-29 18:12:23 -07:00
Makefile ramoops: Move to fs/pstore/ram.c 2012-05-16 08:06:37 -07:00
mbcs.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
mbcs.h Fix common misspellings 2011-03-31 11:26:23 -03:00
mem.c powerpc: Disable /dev/port interface on systems without an ISA bridge 2012-07-11 18:22:32 +10:00
misc.c switch device_get_devnode() and ->devnode() to umode_t * 2012-01-03 22:54:55 -05:00
mmtimer.c posix-timers: Cleanup namespace 2011-02-02 15:28:19 +01:00
msm_smd_pkt.c drivers/char/msm_smd_pkt.c: don't use IS_ERR() 2011-08-25 16:25:33 -07:00
mspec.c [IA64] Redefine ATOMIC_INIT and ATOMIC64_INIT to drop the casts 2012-07-26 10:55:26 -07:00
nsc_gpio.c
nvram.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
nwbutton.c Fix common misspellings 2011-03-31 11:26:23 -03:00
nwbutton.h
nwflash.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
pc8736x_gpio.c
ppdev.c drivers/char/ppdev.c: put gotten port value 2011-05-26 17:12:37 -07:00
ps3flash.c drivers/char: Add module.h to those who were using it implicitly 2011-10-31 19:31:40 -04:00
random.c random: mix in architectural randomness in extract_buf() 2012-07-27 22:37:20 -04:00
raw.c switch device_get_devnode() and ->devnode() to umode_t * 2012-01-03 22:54:55 -05:00
rtc.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
scx200_gpio.c
snsc_event.c
snsc.c
snsc.h
sonypi.c sonypi: Use struct dev_pm_ops for power management 2012-07-01 13:31:14 +02:00
tb0219.c
tile-srom.c tile-srom.c driver: minor code cleanup 2012-04-02 12:14:10 -04:00
tlclk.c char: Fix typo in tlclk.c 2012-02-09 23:09:37 +01:00
toshiba.c
ttyprintk.c TTY: remove re-assignments to tty_driver members 2012-03-08 11:37:58 -08:00
uv_mmtimer.c
virtio_console.c virtio: console: tell host of open ports after resume from s3/s4 2012-05-17 12:14:33 +03:00