From 2bb78efab42cf4ee7a7184f7d2da1b7cb331b479 Mon Sep 17 00:00:00 2001 From: Michael Neuling Date: Mon, 11 Mar 2013 16:42:49 +0000 Subject: powerpc/ptrace: Fix brk.len used uninitialised With some CONFIGS it's possible that in ppc_set_hwdebug, brk.len is uninitialised before being used. It has been reported that GCC 4.2 will produce the following error in this case: arch/powerpc/kernel/ptrace.c:1479: warning: 'brk.len' is used uninitialized in this function arch/powerpc/kernel/ptrace.c:1381: note: 'brk.len' was declared here This patch corrects this. Signed-off-by: Michael Neuling Reported-by: Philippe De Muyter Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/kernel/ptrace.c | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/powerpc') diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c index 245c1b6a0858..f9b30c68ba47 100644 --- a/arch/powerpc/kernel/ptrace.c +++ b/arch/powerpc/kernel/ptrace.c @@ -1428,6 +1428,7 @@ static long ppc_set_hwdebug(struct task_struct *child, brk.address = bp_info->addr & ~7UL; brk.type = HW_BRK_TYPE_TRANSLATE; + brk.len = 8; if (bp_info->trigger_type & PPC_BREAKPOINT_TRIGGER_READ) brk.type |= HW_BRK_TYPE_READ; if (bp_info->trigger_type & PPC_BREAKPOINT_TRIGGER_WRITE) -- cgit v1.2.3