run_io_and_recover() invokes fio with --size="${size}", but the variable
size doesn't exist. Thus, the argument expands to --size=, which causes
fio to exit immediately with an error without issuing any I/O. Pass the
value for size as the first argument to the function.

Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
---
 tools/testing/selftests/ublk/test_common.sh     | 5 +++--
 tools/testing/selftests/ublk/test_generic_04.sh | 2 +-
 tools/testing/selftests/ublk/test_generic_05.sh | 2 +-
 tools/testing/selftests/ublk/test_generic_11.sh | 2 +-
 4 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/tools/testing/selftests/ublk/test_common.sh b/tools/testing/selftests/ublk/test_common.sh
index 8a4dbd09feb0..6f1c042de40e 100755
--- a/tools/testing/selftests/ublk/test_common.sh
+++ b/tools/testing/selftests/ublk/test_common.sh
@@ -331,15 +331,16 @@ run_io_and_kill_daemon()
 	fi
 }
 
 run_io_and_recover()
 {
-	local action=$1
+	local size=$1
+	local action=$2
 	local state
 	local dev_id
 
-	shift 1
+	shift 2
 	dev_id=$(_add_ublk_dev "$@")
 	_check_add_dev "$TID" $?
 
 	fio --name=job1 --filename=/dev/ublkb"${dev_id}" --ioengine=libaio \
 		--rw=randread --iodepth=256 --size="${size}" --numjobs=4 \
diff --git a/tools/testing/selftests/ublk/test_generic_04.sh b/tools/testing/selftests/ublk/test_generic_04.sh
index 8b533217d4a1..baf5b156193d 100755
--- a/tools/testing/selftests/ublk/test_generic_04.sh
+++ b/tools/testing/selftests/ublk/test_generic_04.sh
@@ -6,11 +6,11 @@
 TID="generic_04"
 ERR_CODE=0
 
 ublk_run_recover_test()
 {
-	run_io_and_recover "kill_daemon" "$@"
+	run_io_and_recover 256M "kill_daemon" "$@"
 	ERR_CODE=$?
 	if [ ${ERR_CODE} -ne 0 ]; then
 		echo "$TID failure: $*"
 		_show_result $TID $ERR_CODE
 	fi
diff --git a/tools/testing/selftests/ublk/test_generic_05.sh b/tools/testing/selftests/ublk/test_generic_05.sh
index 398e9e2b58e1..7b5083afc02a 100755
--- a/tools/testing/selftests/ublk/test_generic_05.sh
+++ b/tools/testing/selftests/ublk/test_generic_05.sh
@@ -6,11 +6,11 @@
 TID="generic_05"
 ERR_CODE=0
 
 ublk_run_recover_test()
 {
-	run_io_and_recover "kill_daemon" "$@"
+	run_io_and_recover 256M "kill_daemon" "$@"
 	ERR_CODE=$?
 	if [ ${ERR_CODE} -ne 0 ]; then
 		echo "$TID failure: $*"
 		_show_result $TID $ERR_CODE
 	fi
diff --git a/tools/testing/selftests/ublk/test_generic_11.sh b/tools/testing/selftests/ublk/test_generic_11.sh
index a00357a5ec6b..d1f973c8c645 100755
--- a/tools/testing/selftests/ublk/test_generic_11.sh
+++ b/tools/testing/selftests/ublk/test_generic_11.sh
@@ -6,11 +6,11 @@
 TID="generic_11"
 ERR_CODE=0
 
 ublk_run_quiesce_recover()
 {
-	run_io_and_recover "quiesce_dev" "$@"
+	run_io_and_recover 256M "quiesce_dev" "$@"
 	ERR_CODE=$?
 	if [ ${ERR_CODE} -ne 0 ]; then
 		echo "$TID failure: $*"
 		_show_result $TID $ERR_CODE
 	fi
-- 
2.45.2