[PATCH blktests v1 02/18] nvme/rc: silence fcloop cleanup failures

[Daniel Wagner <dwagner@suse.de>]

When the ctl file is missing we are logging

  tests/nvme/rc: line 265: /sys/class/fcloop/ctl/del_target_port: No such file or directory
  tests/nvme/rc: line 257: /sys/class/fcloop/ctl/del_local_port: No such file or directory
  tests/nvme/rc: line 249: /sys/class/fcloop/ctl/del_remote_port: No such file or directory

because the first redirect operator fails. Thus first check if the ctl
file exists.

Signed-off-by: Daniel Wagner <dwagner@suse.de>
---
 tests/nvme/rc | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/tests/nvme/rc b/tests/nvme/rc
index 78d84af72e73..53fa54e64cb2 100644
--- a/tests/nvme/rc
+++ b/tests/nvme/rc
@@ -234,7 +234,10 @@ _nvme_fcloop_del_rport() {
 	local remote_wwpn="$4"
 	local loopctl=/sys/class/fcloop/ctl
 
-	echo "wwnn=${remote_wwnn},wwpn=${remote_wwpn}" > ${loopctl}/del_remote_port 2> /dev/null
+	if [[ ! -f "${loopctrl}" ]]; then
+		return
+	fi
+	echo "wwnn=${remote_wwnn},wwpn=${remote_wwpn}" > ${loopctl}/del_remote_port > /dev/null 2>&1
 }
 
 _nvme_fcloop_del_lport() {
@@ -242,7 +245,10 @@ _nvme_fcloop_del_lport() {
 	local wwpn="$2"
 	local loopctl=/sys/class/fcloop/ctl
 
-	echo "wwnn=${wwnn},wwpn=${wwpn}" > ${loopctl}/del_local_port 2> /dev/null
+	if [[ ! -f "${loopctrl}" ]]; then
+		return
+	fi
+	echo "wwnn=${wwnn},wwpn=${wwpn}" > ${loopctl}/del_local_port > /dev/null > /dev/null 2>&1
 }
 
 _nvme_fcloop_del_tport() {
@@ -250,7 +256,10 @@ _nvme_fcloop_del_tport() {
 	local wwpn="$2"
 	local loopctl=/sys/class/fcloop/ctl
 
-	echo "wwnn=${wwnn},wwpn=${wwpn}" > ${loopctl}/del_target_port 2> /dev/null
+	if [[ ! -f "${loopctrl}" ]]; then
+		return
+	fi
+	echo "wwnn=${wwnn},wwpn=${wwpn}" > ${loopctl}/del_target_port > /dev/null 2&>1
 }
 
 _cleanup_fcloop() {
-- 
2.44.0