From: Sam Ravnborg <sam@ravnborg.org>
Date: Sat, 14 Aug 2010 12:40:00 +0000 (+0200)
Subject: kconfig: fix segfault when detecting recursive dependency
X-Git-Tag: v2.6.36-rc3~45^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3643f849d7da5c12da589beb03c12303fe79b841;p=pandora-kernel.git

kconfig: fix segfault when detecting recursive dependency

Following sample Kconfig generated a segfault:

config FOO
        bool
        select PERF_EVENTS if HAVE_HW_BREAKPOINT

config PERF_EVENTS
        bool

config HAVE_HW_BREAKPOINT
        bool
        depends on PERF_EVENTS

Fix by reverting back to a valid property if there was no
property on the stack of symbols.

The above pattern were seen in sh Kconfig.
A fix for the Kconfig file has been sent to the sh folks.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---

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