From a8e57bde8d2d9ba23a8c5fc7ddc6438c0142d33f Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pj@pehjota.net>
Date: Sun, 17 Jan 2016 10:34:56 -0500
Subject: cmd/*: Check return value of profile_detect()

Also clean up on error now.
---
diff --git a/src/cmd/build.sh b/src/cmd/build.sh
index d48742e..5151c46 100644
--- a/src/cmd/build.sh
+++ b/src/cmd/build.sh
@@ -70,7 +70,10 @@ cmd_build_main()
 		cmd_build_pkg_dir="${arg}"
 	done
 
-	profile_detect "${root}"
+	if ! profile_detect "${root}"; then
+		[ "x${dev}" != 'x' ] && block_umount "${root}"
+		return 2
+	fi
 
 	if ! [ -d "${cmd_build_pkg_dir}" ]; then
 		error "$(get_msg 'cmd_build_not_a_dir')" "${cmd_build_pkg_dir}"
diff --git a/src/cmd/mkinitramfs.sh b/src/cmd/mkinitramfs.sh
index d319f3d..e888548 100644
--- a/src/cmd/mkinitramfs.sh
+++ b/src/cmd/mkinitramfs.sh
@@ -57,7 +57,10 @@ cmd_mkinitramfs_main()
 		root="$(block_mount "${dev}")"
 	fi
 
-	profile_detect "${root}"
+	if ! profile_detect "${root}"; then
+		[ "x${dev}" != 'x' ] && block_umount "${root}"
+		return 2
+	fi
 	arch="$(cat "${root}/etc/proteanos_arch")"
 	plat="$(cat "${root}/etc/proteanos_plat")"
 
diff --git a/src/cmd/opkg.sh b/src/cmd/opkg.sh
index 712baab..cb592c9 100644
--- a/src/cmd/opkg.sh
+++ b/src/cmd/opkg.sh
@@ -78,7 +78,10 @@ cmd_opkg_main()
 		fi
 	done
 
-	profile_detect "${root}"
+	if ! profile_detect "${root}"; then
+		[ "x${dev}" != 'x' ] && block_umount "${root}"
+		return 2
+	fi
 
 	session_begin "${root}" . cmd_opkg_fini false
 
diff --git a/src/cmd/shell.sh b/src/cmd/shell.sh
index 578e5d1..d964ec5 100644
--- a/src/cmd/shell.sh
+++ b/src/cmd/shell.sh
@@ -37,7 +37,10 @@ cmd_shell_main()
 		root="$(block_mount "${dev}")"
 	fi
 
-	profile_detect "${root}"
+	if ! profile_detect "${root}"; then
+		[ "x${dev}" != 'x' ] && block_umount "${root}"
+		return 2
+	fi
 
 	session_begin "${root}" . : false
 	if [ ${#} -eq 0 ]; then
--
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