dahdi_span_types: hush warning of missing attribute

Don't warn when a sysfs attribute does not exist.

Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
Acked-By: Russ Meyerriecks <rmeyerriecks@digium.com>
This commit is contained in:
Tzafrir Cohen 2014-01-23 17:55:38 +02:00
parent b621c02b7f
commit d3feed5c4c

View File

@ -166,7 +166,7 @@ fi
# Beware of special characters in attributes
attr_clean() {
cat "$1" | tr -d '\n' | tr '!' '/' | tr -c 'a-zA-Z0-9/:.-' '_'
cat "$1" 2>/dev/null | tr -d '\n' | tr '!' '/' | tr -c 'a-zA-Z0-9/:.-' '_'
}
show_spantypes() {