Address issues raised by shellcheck SC2320:
  "This $? refers to echo/printf, not a previous command.
   Assign to variable to avoid it being overwritten."

Signed-off-by: Stefan Berger <[email protected]>
---
 tests/Makefile.am              | 2 +-
 tests/mmap_check.test          | 8 +++-----
 tests/portable_signatures.test | 9 +++------
 3 files changed, 7 insertions(+), 12 deletions(-)

diff --git a/tests/Makefile.am b/tests/Makefile.am
index bcc1ee4..babfa7a 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -26,7 +26,7 @@ clean-local:
 distclean: distclean-keys
 
 shellcheck:
-       shellcheck -i SC2086,SC2181,SC2046 \
+       shellcheck -i SC2086,SC2181,SC2046,SC2320 \
                functions.sh gen-keys.sh install-fsverity.sh \
                install-mount-idmapped.sh install-openssl3.sh \
                install-swtpm.sh install-tss.sh softhsm_setup \
diff --git a/tests/mmap_check.test b/tests/mmap_check.test
index 2dd3433..3d2e1b1 100755
--- a/tests/mmap_check.test
+++ b/tests/mmap_check.test
@@ -97,11 +97,9 @@ check_load_ima_rule() {
 
        new_policy=$(mktemp -p "$g_mountpoint")
        echo "$1" > "$new_policy"
-       echo "$new_policy" > /sys/kernel/security/ima/policy
-       result=$?
-       rm -f "$new_policy"
-
-       if [ "$result" -ne 0 ]; then
+       if echo "$new_policy" > /sys/kernel/security/ima/policy; then
+               rm -f "$new_policy"
+       else
                echo "${RED}Failed to set IMA policy${NORM}"
                return "$HARDFAIL"
        fi
diff --git a/tests/portable_signatures.test b/tests/portable_signatures.test
index 9f3339b..5251211 100755
--- a/tests/portable_signatures.test
+++ b/tests/portable_signatures.test
@@ -80,7 +80,6 @@ METADATA_CHANGE_FOWNER_2=3002
 
 check_load_ima_rule() {
        local rule_loaded
-       local result
        local new_policy
 
        rule_loaded=$(grep "$1" /sys/kernel/security/ima/policy)
@@ -88,11 +87,9 @@ check_load_ima_rule() {
                new_policy=$(mktemp -p "$g_mountpoint")
                echo "$1" > "$new_policy"
                evmctl sign -o -a sha256 --imasig --key "$key_path" 
"$new_policy" &> /dev/null
-               echo "$new_policy" > /sys/kernel/security/ima/policy
-               result=$?
-               rm -f "$new_policy"
-
-               if [ "$result" -ne 0 ]; then
+               if echo "$new_policy" > /sys/kernel/security/ima/policy; then
+                       rm -f "$new_policy"
+               else
                        echo "${RED}Failed to set IMA policy${NORM}"
                        return "$FAIL"
                fi
-- 
2.41.0


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