test: ignore exit code of increment in qemu_add_drive

Ignore error status code when incrementing from 0 to 1. See also
https://www.shellcheck.net/wiki/SC2219

Fixes: 1af00bf238c8 ("chore: resolve shellcheck for SC2219")

diff --git a/test/test-functions b/test/test-functions
index db02cea85dbcecd888ff6bda2641494f2c2bbc1c..c7c409fad018149336d0d3355ada61c750f8f8b2 100644 (file)
--- a/test/test-functions
+++ b/test/test-functions
@@ -225,7 +225,7 @@ qemu_add_drive() {
         -device "scsi-hd,bus=scsi${index}.0,drive=drive-data${index},id=data${index},${bootindex:+bootindex=$bootindex,}serial=${name}" \
         ')'
 
-    [ $(("${1}++")) -ne 0 ]
+    : $(("${1}++"))
 }
 
 test_marker_reset() {