[PATCH 03/17] shellcheck : fixing signal names and adding double quotes for expression in test_arm_callgraph_fp

[Athira Rajeev]

From: Spoorthy S <spoorts2 at in.ibm.com>

Running shellcheck -S on test_arm_calligraph_fp throws warnings SC2086 and SC3049,

      $shellcheck -S warning tests/shell/test_arm_callgraph_fp.sh
         rm -f $PERF_DATA
            : Double quote to prevent globbing and word splitting.
         trap cleanup_files exit term int
                     : In POSIX sh, using lower/mixed case for signal names is undefined.

After fixing the warnings,

      $shellcheck tests/shell/test_arm_callgraph_fp.sh
      $ echo $?
      0

To address the POSIX shell warnings added changes to convert Lowercase
signal names to uppercase in the script and double quoted the
command substitutions($fix to "$fix") to solve Globbing warnings.

Signed-off-by: Athira Rajeev <atrajeev at linux.vnet.ibm.com>
Signed-off-by: Kajol Jain <kjain at linux.ibm.com>
Signed-off-by: Spoorthy S<spoorts2 at in.ibm.com>
---
 tools/perf/tests/shell/test_arm_callgraph_fp.sh | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/perf/tests/shell/test_arm_callgraph_fp.sh b/tools/perf/tests/shell/test_arm_callgraph_fp.sh
index e61d8deaa0c4..1380e0d12dce 100755
--- a/tools/perf/tests/shell/test_arm_callgraph_fp.sh
+++ b/tools/perf/tests/shell/test_arm_callgraph_fp.sh
@@ -9,13 +9,13 @@ TEST_PROGRAM="perf test -w leafloop"
 
 cleanup_files()
 {
-	rm -f $PERF_DATA
+	rm -f "$PERF_DATA"
 }
 
-trap cleanup_files exit term int
+trap cleanup_files EXIT TERM INT
 
 # Add a 1 second delay to skip samples that are not in the leaf() function
-perf record -o $PERF_DATA --call-graph fp -e cycles//u -D 1000 --user-callchains -- $TEST_PROGRAM 2> /dev/null &
+perf record -o "$PERF_DATA" --call-graph fp -e cycles//u -D 1000 --user-callchains -- "$TEST_PROGRAM" 2> /dev/null &
 PID=$!
 
 echo " + Recording (PID=$PID)..."
-- 
2.39.1