]> git.baikalelectronics.ru Git - kernel.git/commit
menuconfig: fix NULL pointer dereference when searching a symbol
authorLi Zefan <lizefan@huawei.com>
Tue, 7 May 2013 13:56:54 +0000 (15:56 +0200)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 7 May 2013 14:55:36 +0000 (07:55 -0700)
commitff925ca475fada902508006f34f9106839464a97
treed22fc5e9d1f8f2ae11b367caf9cbc11fc81cb3bb
parenta4e34ca64b71149c0973ed4ff21e5f37794bf7a0
menuconfig: fix NULL pointer dereference when searching a symbol

Searching for PPC_EFIKA results in a segmentation fault, and it's
because get_symbol_prop() returns NULL.

In this case CONFIG_PPC_EFIKA is defined in arch/powerpc/platforms/
52xx/Kconfig, so it won't be parsed if ARCH!=PPC, but menuconfig knows
this symbol when it parses sound/soc/fsl/Kconfig:

    config SND_MPC52xx_SOC_EFIKA
        tristate "SoC AC97 Audio support for bbplan Efika and STAC9766"
        depends on PPC_EFIKA

This bug was introduced by commit a392b41a340c ("menuconfig: print more
info for symbol without prompts").

Reported-and-tested-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Li Zefan <lizefan@huawei.com>
Tested-by: Libo Chen <libo.chen@huawei.com>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Michal Marek <mmarek@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
scripts/kconfig/menu.c