From: Masami Hiramatsu <mhiramat@redhat.com>
Date: Tue, 4 Mar 2008 22:29:44 +0000 (-0800)
Subject: kprobes: fix a null pointer bug in register_kretprobe()
X-Git-Tag: v2.6.25-rc4~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b2a5cd6938879b5bcfef0a73c28fea84c49519c2;p=pandora-kernel.git

kprobes: fix a null pointer bug in register_kretprobe()

Fix a bug in regiseter_kretprobe() which does not check rp->kp.symbol_name ==
NULL before calling kprobe_lookup_name.

For maintainability, this introduces kprobe_addr helper function which
resolves addr field.  It is used by register_kprobe and register_kretprobe.

Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Jim Keniston <jkenisto@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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