scripts/runqemu-ifup: Fix 10 or more tap devices

The use of sort means that tap10 and tap1 don't sort correctly. Tweak
the shell expression to correctly handle numbers of tap devices of 10
or more.

(From OE-Core rev: 4c6d0f3ddbb76bde7f35edeb280fe56a9a00f91b)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/scripts/runqemu-ifup b/scripts/runqemu-ifup
index e3aa16c97d..5dc765dee8 100755
--- a/scripts/runqemu-ifup
+++ b/scripts/runqemu-ifup
@@ -38,7 +38,7 @@ USERID="-u $1"
 GROUP="-g $2"
 
 if taps=$(ip tuntap list 2>/dev/null); then
-        tap_no=$(( $(echo "$taps" |sort -r |sed 's/^tap//; s/:.*//; q') + 1 ))
+        tap_no=$(( $(echo "$taps" |cut -f 1 -d ":" | sed 's/tap//g' | sort -rn | head -n 1) + 1 ))
         ip tuntap add tap$tap_no mode tap group $2 && TAP=tap$tap_no
 fi