From a1d44b9acdf7b2820ef762846150b4d13b84e075 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Wed, 23 May 2012 21:47:51 -0300 Subject: [PATCH] perf evlist: Explicititely initialize input_name It was a global variable, so it was initialized, implicitely, to zero by being placed in the bss. Now it is just a local variable that is then passed to the __cmd_evlist routine, so it must be explicitely set to NULL. The problem manifested on a Fedora 17 system, using: gcc version 4.7.0 20120507 (Red Hat 4.7.0-5) (GCC) But not on several other systems, by luck. Reported-by: Ingo Molnar Cc: David Ahern Cc: Frederic Weisbecker Cc: Mike Galbraith Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/n/tip-5e8wolcjs3rgd5i6yi995gfh@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-evlist.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/builtin-evlist.c b/tools/perf/builtin-evlist.c index e52d77ec708..acd78dc2834 100644 --- a/tools/perf/builtin-evlist.c +++ b/tools/perf/builtin-evlist.c @@ -116,7 +116,7 @@ static const char * const evlist_usage[] = { int cmd_evlist(int argc, const char **argv, const char *prefix __used) { struct perf_attr_details details = { .verbose = false, }; - const char *input_name; + const char *input_name = NULL; const struct option options[] = { OPT_STRING('i', "input", &input_name, "file", "Input file name"), -- 2.20.1