download/coreboot: minor cleanup

resources/scripts/download/coreboot

@@ -2,8 +2,7 @@
 
 #  helper script: download coreboot
 #
-#	Copyright (C) 2014,2015,2016,2020,2021,2023 Leah Rowe
-#							<info@minifree.org>
+#	Copyright (C) 2014-2016,2020,2021,2023 Leah Rowe <info@minifree.org>
 #	Copyright (C) 2022 Alper Nebi Yasak <alpernebiyasak@gmail.com>
 #	Copyright (C) 2022 Ferass El Hafidi <vitali64pmemail@protonmail.com>
 #
@@ -38,9 +37,9 @@ main()
 	elif [ $# -eq 1 ] && [ "$1" = "--list-boards" ] ; then
 		list_supported_boards
 		exit 0
-	else
-		fetch_coreboot_trees $@
 	fi
+
+	fetch_coreboot_trees $@
 }
 
 fetch_coreboot_trees()
@@ -53,13 +52,13 @@ fetch_coreboot_trees()
 	if [ $# -gt 0 ]; then
 		boards=$@
 	else
-		for board in ${cbcfgsdir}/*; do
+		for board in "${cbcfgsdir}/"*; do
 			[ ! -d "${board}" ] && continue
 			boards="${boards} ${board##*/}"
 		done
 	fi
 	for board in ${boards}; do
-		rm -f ${cbcfgsdir}/*/seen
+		rm -f "${cbcfgsdir}"/*/seen
 		download_coreboot_for_board "${board}"
 	done
 
@@ -74,7 +73,7 @@ download_coreboot_for_board()
 
 	fetch_coreboot_config "${_board}" || exit 1
 
-	rm -f ${cbcfgsdir}/*/seen
+	rm -f "${cbcfgsdir}"/*/seen
 
 	if [ -d "coreboot/${cbtree}" ]; then
 		printf "REMARK: download/coreboot %s: exists. Skipping.\n" \
@@ -120,7 +119,6 @@ fetch_coreboot_config()
 			break
 		fi
 	done
-	return 0
 }
 
 check_config_for_board()
@@ -138,7 +136,6 @@ check_config_for_board()
 		return 1
 	fi
 	touch "${cbcfgsdir}/${_board}/seen"
-	return 0
 }
 
 gitclone_coreboot_from_upstream()
@@ -153,7 +150,6 @@ gitclone_coreboot_from_upstream()
 		return 1
 	./gitclone coreboot || \
 		return 1
-	return 0
 }
 
 prepare_new_coreboot_tree()
@@ -172,7 +168,7 @@ prepare_new_coreboot_tree()
 	git reset --hard ${cbrevision} || exit 1
 	git submodule update --init --checkout || exit 1
 
-	for patch in ../../${cbcfgsdir}/${cbtree}/patches/*.patch; do
+	for patch in ../../"${cbcfgsdir}"/"${cbtree}"/patches/*.patch; do
 		[ ! -f "${patch}" ] && \
 			continue
 		if ! git am "${patch}"; then
@@ -204,7 +200,7 @@ usage()
 
 list_supported_boards()
 {
-	for _board in ${cbcfgsdir}/*; do
+	for _board in "${cbcfgsdir}/"*; do
 		echo ${_board} | sed 's#${cbcfgsdir}/##'
 	done
 }