From 1e2dd2f73afdc810cc7400b7036232fbdc416eeb Mon Sep 17 00:00:00 2001 From: David Miller Date: Sun, 25 Mar 2012 16:28:22 -0400 Subject: [PATCH] perf symbols: Handle NULL dso in dso__name_len We should use "[unknown]" in this case, in concert with the code in _hist_entry__dso_snprintf(). Otherwise we'll crash when recomputing the histogram column lengths in hists__calc_col_len(). Signed-off-by: David S. Miller Link: http://lkml.kernel.org/r/20120325.162822.2267799792062571623.davem@davemloft.net Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/symbol.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index d9e995bf8b6f..c0a028c3ebaf 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -50,6 +50,8 @@ struct symbol_conf symbol_conf = { int dso__name_len(const struct dso *dso) { + if (!dso) + return strlen("[unknown]"); if (verbose) return dso->long_name_len;