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perf/trace/scripting: failed-syscalls-by-pid script cleanup

A small fixe for the failed syscalls by pid script:

 - silence the match output in the shell script

Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
LKML-Reference: <1273466820-9330-8-git-send-email-tzanussi@gmail.com>
Signed-off-by: Tom Zanussi <tzanussi@gmail.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tom Zanussi 15 yıl önce
ebeveyn
işleme
a4ab0c1297

+ 1 - 1
tools/perf/scripts/python/bin/failed-syscalls-by-pid-report

@@ -2,7 +2,7 @@
 # description: system-wide failed syscalls, by pid
 # args: [comm]
 if [ $# -gt 0 ] ; then
-    if ! expr match "$1" "-" ; then
+    if ! expr match "$1" "-" > /dev/null ; then
 	comm=$1
 	shift
     fi