[openwrt/openwrt] mediatek: mt7623: make use of find_mmc_part

[LEDE Commits]

dangole pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/b0703590359b876228d4603ca75af82ba87a6f5b

commit b0703590359b876228d4603ca75af82ba87a6f5b
Author: Daniel Golle <daniel at makrotopia.org>
AuthorDate: Mon Nov 1 14:03:25 2021 +0000

    mediatek: mt7623: make use of find_mmc_part
    
    Use find_mmc_part instead of previously introduced
    get_partition_by_name which requires a custom kernel patch.
    
    Signed-off-by: Daniel Golle <daniel at makrotopia.org>
---
 .../linux/mediatek/mt7623/base-files/lib/upgrade/platform.sh   | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/target/linux/mediatek/mt7623/base-files/lib/upgrade/platform.sh b/target/linux/mediatek/mt7623/base-files/lib/upgrade/platform.sh
index 11da6314dc..29c4bf1e03 100755
--- a/target/linux/mediatek/mt7623/base-files/lib/upgrade/platform.sh
+++ b/target/linux/mediatek/mt7623/base-files/lib/upgrade/platform.sh
@@ -89,13 +89,13 @@ platform_do_upgrade() {
 		blockdev --rereadpt /dev/$rootdev || return 1
 		export_partdevice fitpart 3
 		[ "$fitpart" ] || return 1
-		dd if=/dev/zero of=/dev/$fitpart bs=4096 count=1 2>/dev/null
+		dd if=/dev/zero of=$fitpart bs=4096 count=1 2>/dev/null
 		blockdev --rereadpt /dev/$rootdev
-		get_image "$1" | dd of=/dev/$fitpart
+		get_image "$1" | dd of=$fitpart
 		blockdev --rereadpt /dev/$rootdev
-		local datapart=$(get_partition_by_name $rootdev "rootfs_data")
+		local datapart=$(find_mmc_part "rootfs_data" $rootdev)
 		[ "$datapart" ] || return 0
-		dd if=/dev/zero of=/dev/$datapart bs=4096 count=1 2>/dev/null
+		dd if=/dev/zero of=$datapart bs=4096 count=1 2>/dev/null
 		echo $datapart > /tmp/sysupgrade.datapart
 		;;
 
@@ -175,7 +175,7 @@ platform_copy_config_mmc() {
 	[ -e "$UPGRADE_BACKUP" ] || return
 	local datapart=$(cat /tmp/sysupgrade.datapart)
 	[ "$datapart" ] || echo "no rootfs_data partition, cannot keep configuration." >&2
-	dd if="$UPGRADE_BACKUP" of=/dev/$datapart
+	dd if="$UPGRADE_BACKUP" of=$datapart
 	sync
 }