mac80211: don't call md5sum on non-existing file

If no AP is configured, hostapd-${phy}.conf is not being created,
hence md5sum fails and causes log pollution:

netifd: radio1 (3183): md5sum: can't open '/var/run/hostapd-phy1.conf': No such file or directoy

Hence make sure the file exists when calling md5sum.

Fixes: a5bc9787d4 ("mac80211: add support for dynamically reconfiguring wifi")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>

diff --git a/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh b/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh
index 06244bf0e314d568beba5cb602a6bcb07b0352d6..18033e9d567a4c036fabc3b5762ee12dffa63edb 100644 (file)
--- a/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh
+++ b/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh
@@ -925,7 +925,7 @@ drv_mac80211_setup() {
        for_each_interface "sta adhoc mesh monitor" mac80211_prepare_vif
        NEWAPLIST=
        for_each_interface "ap" mac80211_prepare_vif
-       NEW_MD5=$(md5sum ${hostapd_conf_file})
+       NEW_MD5=$(test -e "${hostapd_conf_file}" && md5sum ${hostapd_conf_file})
        OLD_MD5=$(uci -q -P /var/state get wireless._${phy}.md5)
        if [ "${NEWAPLIST}" != "${OLDAPLIST}" ]; then
                mac80211_vap_cleanup hostapd "${OLDAPLIST}"