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-rwxr-xr-xtools/testing/selftests/firmware/fw_fallback.sh31
1 files changed, 31 insertions, 0 deletions
diff --git a/tools/testing/selftests/firmware/fw_fallback.sh b/tools/testing/selftests/firmware/fw_fallback.sh
index 2e4c22d5..8f51103 100755
--- a/tools/testing/selftests/firmware/fw_fallback.sh
+++ b/tools/testing/selftests/firmware/fw_fallback.sh
@@ -134,6 +134,27 @@ load_fw_custom_cancel()
wait
}
+load_fw_fallback_with_child()
+{
+ local name="$1"
+ local file="$2"
+
+ # This is the value already set but we want to be explicit
+ echo 4 >/sys/class/firmware/timeout
+
+ sleep 1 &
+ SECONDS_BEFORE=$(date +%s)
+ echo -n "$name" >"$DIR"/trigger_request 2>/dev/null
+ SECONDS_AFTER=$(date +%s)
+ SECONDS_DELTA=$(($SECONDS_AFTER - $SECONDS_BEFORE))
+ if [ "$SECONDS_DELTA" -lt 4 ]; then
+ RET=1
+ else
+ RET=0
+ fi
+ wait
+ return $RET
+}
trap "test_finish" EXIT
@@ -221,4 +242,14 @@ else
echo "$0: cancelling custom fallback mechanism works"
fi
+set +e
+load_fw_fallback_with_child "nope-signal-$NAME" "$FW"
+if [ "$?" -eq 0 ]; then
+ echo "$0: SIGCHLD on sync ignored as expected" >&2
+else
+ echo "$0: error - sync firmware request cancelled due to SIGCHLD" >&2
+ exit 1
+fi
+set -e
+
exit 0
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