check: fix TEST_DEVS being overwritten

Signed-off-by: Omar Sandoval <osandov@fb.com>

diff --git a/check b/check
index 06b65b5092f4fdd814a49dcc4f4620735388a278..a6355312063564c0c167df4f8c09f53f7258596d 100755 (executable)
--- a/check
+++ b/check
@@ -607,7 +607,7 @@ if [[ -v TEST_DEVS ]] && ! declare -p TEST_DEVS | grep -q '^declare -a'; then
        # If TEST_DEVS was not defined as an array, convert it to one.
        # shellcheck disable=SC2206
        TEST_DEVS=($TEST_DEVS)
-else
+elif [[ ! -v TEST_DEVS ]]; then
        TEST_DEVS=()
 fi