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octeon: replace backticks by $(...)

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This replaces deprecated backticks by more versatile $(...) syntax.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
[decapitalized patch subject at submitter's request]
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
This commit is contained in:
Adrian Schmutzler 2019-07-25 00:50:26 +02:00 committed by Christian Lamparter
parent aea3cab77a
commit 0bbfc3dff7
1 changed files with 2 additions and 2 deletions
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4
target/linux/octeon/base-files/lib/upgrade/platform.sh
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@ -85,8 +85,8 @@ platform_check_image() {
er | \
erlite)
local tar_file="$1"
local kernel_length=`(tar xf $tar_file sysupgrade-$board/kernel -O | wc -c) 2> /dev/null`
local rootfs_length=`(tar xf $tar_file sysupgrade-$board/root -O | wc -c) 2> /dev/null`
local kernel_length=$((tar xf $tar_file sysupgrade-$board/kernel -O | wc -c) 2> /dev/null)
local rootfs_length=$((tar xf $tar_file sysupgrade-$board/root -O | wc -c) 2> /dev/null)
[ "$kernel_length" = 0 -o "$rootfs_length" = 0 ] && {
echo "The upgrade image is corrupt."
return 1