[PATCH 2/3] boot-directdisk: Scope HDDDIR and HDDIMG variables to avoid conflicts

[Jonathan Liu <net147@gmail.com>]

These variables should not be shared with other image classes.
The bootimg class also has an HDDDIR variable that could be overwritten
if executing concurrently in the same image recipe.

Signed-off-by: Jonathan Liu <net147@gmail.com>
---
 meta/classes/boot-directdisk.bbclass | 25 ++++++++++++-------------
 1 file changed, 12 insertions(+), 13 deletions(-)

diff --git a/meta/classes/boot-directdisk.bbclass b/meta/classes/boot-directdisk.bbclass
index aa172c6..9673760 100644
--- a/meta/classes/boot-directdisk.bbclass
+++ b/meta/classes/boot-directdisk.bbclass
@@ -28,9 +28,6 @@ do_bootdirectdisk[depends] += "dosfstools-native:do_populate_sysroot \
 PACKAGES = " "
 EXCLUDE_FROM_WORLD = "1"
 
-HDDDIR = "${S}/hdd/boot"
-HDDIMG = "${S}/hdd.image"
-
 BOOTDD_VOLUME_ID   ?= "boot"
 BOOTDD_EXTRA_SPACE ?= "16384"
 
@@ -43,14 +40,16 @@ SYSLINUX_TIMEOUT ?= "10"
 inherit syslinux
 		
 build_boot_dd() {
+	HDDDIR="${S}/hdd/boot"
+	HDDIMG="${S}/hdd.image"
 	IMAGE=${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.hdddirect
 
-	install -d ${HDDDIR}
-	install -m 0644 ${STAGING_KERNEL_DIR}/bzImage ${HDDDIR}/vmlinuz
-	install -m 0644 ${S}/syslinux.cfg ${HDDDIR}/syslinux.cfg
-	install -m 444 ${STAGING_DATADIR}/syslinux/ldlinux.sys ${HDDDIR}/ldlinux.sys
+	install -d $HDDDIR
+	install -m 0644 ${STAGING_KERNEL_DIR}/bzImage $HDDDIR/vmlinuz
+	install -m 0644 ${S}/syslinux.cfg $HDDDIR/syslinux.cfg
+	install -m 444 ${STAGING_DATADIR}/syslinux/ldlinux.sys $HDDDIR/ldlinux.sys
 
-	BLOCKS=`du -bks ${HDDDIR} | cut -f 1`
+	BLOCKS=`du -bks $HDDDIR | cut -f 1`
 	BLOCKS=`expr $BLOCKS + ${BOOTDD_EXTRA_SPACE}`
 
 	# Ensure total sectors is an integral number of sectors per
@@ -59,11 +58,11 @@ build_boot_dd() {
 	# done in blocks, thus the mod by 16 instead of 32.
 	BLOCKS=$(expr $BLOCKS + $(expr 16 - $(expr $BLOCKS % 16)))
 
-	mkdosfs -n ${BOOTDD_VOLUME_ID} -S 512 -C ${HDDIMG} $BLOCKS 
-	mcopy -i ${HDDIMG} -s ${HDDDIR}/* ::/
+	mkdosfs -n ${BOOTDD_VOLUME_ID} -S 512 -C $HDDIMG $BLOCKS 
+	mcopy -i $HDDIMG -s $HDDDIR/* ::/
 
-	syslinux ${HDDIMG}
-	chmod 644 ${HDDIMG}
+	syslinux $HDDIMG
+	chmod 644 $HDDIMG
 
 	ROOTFSBLOCKS=`du -Lbks ${ROOTFS} | cut -f 1`
 	TOTALSIZE=`expr $BLOCKS + $ROOTFSBLOCKS`
@@ -83,7 +82,7 @@ build_boot_dd() {
 
 	OFFSET=`expr $END2 / 512`
 	dd if=${STAGING_DATADIR}/syslinux/mbr.bin of=$IMAGE conv=notrunc
-	dd if=${HDDIMG} of=$IMAGE conv=notrunc seek=1 bs=512
+	dd if=$HDDIMG of=$IMAGE conv=notrunc seek=1 bs=512
 	dd if=${ROOTFS} of=$IMAGE conv=notrunc seek=$OFFSET bs=512
 
 	cd ${DEPLOY_DIR_IMAGE}
-- 
1.8.2.1