From: Rusty Russell <rusty@rustcorp.com.au>
Date: Mon, 14 Jan 2013 07:40:59 +0000 (+1030)
Subject: ccanlint: fix stack smash.
X-Git-Url: http://git.ozlabs.org/?p=ccan;a=commitdiff_plain;h=6bab11a210f123033225553057e24e68b99a8afd;hp=6bab11a210f123033225553057e24e68b99a8afd

ccanlint: fix stack smash.

"engla" on IRC reported that ccanlint on linux/powerpc would loop
infinitely calling dep_failed after all tests are run and the score is
output.

Reproduced, and discovered that cannot_run() takes a container_of(),
except our top node is not a struct ccanlint.  The result was harmless on
x86, but set dep_failed to the return address on powerpc, causing that
to be called repeatedly.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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