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dracut-module-setup.sh: remove surrounding $() for subshell

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Some functions are executed in subshell to avoid variable environment
pollution. But the surrounding $() is not needed, and it may lead to
executing output which is unexpected here.

See: https://github.com/koalaman/shellcheck/wiki/SC2091

Signed-off-by: Kairui Song <kasong@redhat.com>
Suggested-by: Coiby Xu <coxu@redhat.com>
This commit is contained in:
Kairui Song 2021-09-08 15:15:44 +08:00
parent 67e559a6b9
commit 3b0157197b
1 changed files with 4 additions and 4 deletions
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8
dracut-module-setup.sh
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@ -358,7 +358,7 @@ kdump_setup_bridge() {
_dev=${_dev##*/}
_kdumpdev=$_dev
if kdump_is_bond "$_dev"; then
$(kdump_setup_bond "$_dev" "$(get_nmcli_connection_show_cmd_by_ifname "$_dev")")
(kdump_setup_bond "$_dev" "$(get_nmcli_connection_show_cmd_by_ifname "$_dev")")
if [[ $? != 0 ]]; then
exit 1
fi
@ -441,7 +441,7 @@ kdump_setup_vlan() {
derror "Vlan over bridge is not supported!"
exit 1
elif kdump_is_bond "$_phydev"; then
$(kdump_setup_bond "$_phydev" "$(get_nmcli_connection_show_cmd_by_ifname "$_phydev")")
(kdump_setup_bond "$_phydev" "$(get_nmcli_connection_show_cmd_by_ifname "$_phydev")")
if [[ $? != 0 ]]; then
exit 1
fi
@ -560,7 +560,7 @@ kdump_install_net() {
_znet_netdev=$(find_online_znet_device)
if [[ -n "$_znet_netdev" ]]; then
_nm_show_cmd_znet=$(get_nmcli_connection_show_cmd_by_ifname "$_znet_netdev")
$(kdump_setup_znet "$_znet_netdev" "$_nm_show_cmd_znet")
(kdump_setup_znet "$_znet_netdev" "$_nm_show_cmd_znet")
if [[ $? != 0 ]]; then
derror "Failed to set up znet"
exit 1
@ -591,7 +591,7 @@ kdump_install_net() {
if kdump_is_bridge "$_netdev"; then
kdump_setup_bridge "$_netdev"
elif kdump_is_bond "$_netdev"; then
$(kdump_setup_bond "$_netdev" "$_nm_show_cmd")
(kdump_setup_bond "$_netdev" "$_nm_show_cmd")
if [[ $? != 0 ]]; then
exit 1
fi