From: Arnaldo Carvalho de Melo Date: Thu, 24 May 2012 00:47:51 +0000 (-0300) Subject: perf evlist: Explicititely initialize input_name X-Git-Tag: upstream/snapshot3+hdmi~7331^2~3^2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a1d44b9acdf7b2820ef762846150b4d13b84e075;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git 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 --- diff --git a/tools/perf/builtin-evlist.c b/tools/perf/builtin-evlist.c index e52d77e..acd78dc 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"),