commit cb9577958d85896303561d9cc8544885deb272be
author Kyle McMartin <kyle@parisc-linux.org> Wed May 30 02:24:28 2007 -0400
committer Kyle McMartin <kyle@minerva.i.cabal.ca> Wed May 30 02:24:28 2007 -0400
tree a8232600edf17cf4020a121ef4bb7735257e0f0e
parent 516a9491151d5f75911647dd44812f25ff24282d

[PARISC] fix null ptr deref in unwind.c

commit ffb45122766db220d0bf3d01848d575fbbcb6430 removed one too many args.
kallsyms_lookup is not safe to call with a NULL *modname. Paper bag over the
problem for the time being.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

arch/parisc/kernel/unwind.c

diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
index 89c0370..e70f57e 100644
--- a/arch/parisc/kernel/unwind.c
+++ b/arch/parisc/kernel/unwind.c
@@ -216,8 +216,10 @@
 		/* Handle some frequent special cases.... */
 		{
 			char symname[KSYM_NAME_LEN+1];
+			char *modname;
 
-			kallsyms_lookup(info->ip, NULL, NULL, NULL, symname);
+			kallsyms_lookup(info->ip, NULL, NULL, &modname,
+				symname);
 
 			dbg("info->ip = 0x%lx, name = %s\n", info->ip, symname);