perf tests perf_dat _converter_json: Use quoting to avoid word splitting

Running shellcheck on test_perf_data_converter_json.sh throws
below warning:

   In tests/shell/test_perf_data_converter_json.sh line 42:
   	if [ $(cat "${result}" | wc -l) -gt "0" ] ; then
                ^------------------------^ SC2046 (warning): Quote this to prevent word splitting.

Fixed the warning by adding quotes to avoid word splitting.

ShellCheck result with patch:
    # shellcheck -S warning test_perf_data_converter_json.sh
    #

Signed-off-by: Athira Rajeev <[email protected]>
Acked-by: Ian Rogers <[email protected]>
Cc: Disha Goel <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

1 files changed, 1 insertions, 1 deletions

diff --git a/tools/perf/tests/shell/test_perf_data_converter_json.sh b/tools/perf/tests/shell/test_perf_data_converter_json.sh
index 72ac6c83231c..6ded58f98f55 100755
--- a/tools/perf/tests/shell/test_perf_data_converter_json.sh
+++ b/tools/perf/tests/shell/test_perf_data_converter_json.sh
@@ -39,7 +39,7 @@ test_json_converter_command()
 	echo "Testing Perf Data Convertion Command to JSON"
 	perf record -o "$perfdata" -F 99 -g -- perf test -w noploop > /dev/null 2>&1
 	perf data convert --to-json "$result" --force -i "$perfdata" >/dev/null 2>&1
-	if [ $(cat "${result}" | wc -l) -gt "0" ] ; then
+	if [ "$(cat ${result} | wc -l)" -gt "0" ] ; then
 		echo "Perf Data Converter Command to JSON [SUCCESS]"
 	else
 		echo "Perf Data Converter Command to JSON [FAILED]"