test: utils: lttng_pgrep performs lookup on non-existing pid

[lttng-tools.git] / tests / utils / utils.sh

diff --git a/tests/utils/utils.sh b/tests/utils/utils.sh
index 574495704a83baa5f2ba30f273131495eef0f3f2..31087877d1639767086f88ed0821613f342c79f8 100644 (file)
--- a/tests/utils/utils.sh
+++ b/tests/utils/utils.sh
@@ -100,7 +100,7 @@ function lttng_pgrep ()
 
        while IFS= read -r pid ; do
                # /proc/pid/cmdline is null separated.
-               if full_command_no_argument=$(cut -d '' -f 1 < /proc/"$pid"/cmdline); then
+               if full_command_no_argument=$(cut -d '' -f 1 2>/dev/null < /proc/"$pid"/cmdline); then
                        command_basename=$(basename "$full_command_no_argument")
                        if grep -q "$pattern" <<< "$command_basename"; then
                                echo "$pid"