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Date: Sat, 08 Aug 2009 10:49:36 -0500 From: Tom Zanussi <tzanussi@...il.com> To: Ingo Molnar <mingo@...e.hu> Cc: Dan Carpenter <error27@...il.com>, Steven Rostedt <rostedt@...dmis.org>, Frederic Weisbecker <fweisbec@...il.com>, Li Zefan <lizf@...fujitsu.com>, LKML <linux-kernel@...r.kernel.org> Subject: [tip PATCH] tracing/filters: don't use pred on alloc failure Dan Carpenter sent me a fix to prevent pred from being used if it couldn't be allocated. This updates his patch for the same problem in tip. Signed-off-by: Tom Zanussi <tzanussi@...il.com> The original report: create_logical_pred() could sometimes return NULL. It's a static checker complaining rather than problems at runtime... --- kernel/trace/trace_events_filter.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c index 27c2dbe..490337a 100644 --- a/kernel/trace/trace_events_filter.c +++ b/kernel/trace/trace_events_filter.c @@ -1050,6 +1050,8 @@ static int replace_preds(struct event_subsystem *system, pred = create_pred(elt->op, operand1, operand2); add_pred: + if (!pred) + return -ENOMEM; if (call) err = filter_add_pred(ps, call, pred, false); else -- 1.5.6.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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