diff --git a/import-layers/yocto-poky/meta/classes/package_deb.bbclass b/import-layers/yocto-poky/meta/classes/package_deb.bbclass
index e1d05a7..fb6034c 100644
--- a/import-layers/yocto-poky/meta/classes/package_deb.bbclass
+++ b/import-layers/yocto-poky/meta/classes/package_deb.bbclass
@@ -52,6 +52,9 @@
     import re, copy
     import textwrap
     import subprocess
+    import collections
+
+    oldcwd = os.getcwd()
 
     workdir = d.getVar('WORKDIR', True)
     if not workdir:
@@ -117,13 +120,13 @@
 
         controldir = os.path.join(root, 'DEBIAN')
         bb.utils.mkdirhier(controldir)
-        os.chmod(controldir, 0755)
+        os.chmod(controldir, 0o755)
         try:
             import codecs
             ctrlfile = codecs.open(os.path.join(controldir, 'control'), 'w', 'utf-8')
         except OSError:
             bb.utils.unlockfile(lf)
-            raise bb.build.FuncFailed("unable to open control file for writing.")
+            bb.fatal("unable to open control file for writing")
 
         fields = []
         pe = d.getVar('PKGE', True)
@@ -173,7 +176,7 @@
                 # Special behavior for description...
                 if 'DESCRIPTION' in fs:
                      summary = localdata.getVar('SUMMARY', True) or localdata.getVar('DESCRIPTION', True) or "."
-                     ctrlfile.write('Description: %s\n' % unicode(summary,'utf-8'))
+                     ctrlfile.write('Description: %s\n' % summary)
                      description = localdata.getVar('DESCRIPTION', True) or "."
                      description = textwrap.dedent(description).strip()
                      if '\\n' in description:
@@ -182,29 +185,25 @@
                              # We don't limit the width when manually indent, but we do
                              # need the textwrap.fill() to set the initial_indent and
                              # subsequent_indent, so set a large width
-                             ctrlfile.write('%s\n' % unicode(textwrap.fill(t, width=100000, initial_indent=' ', subsequent_indent=' '),'utf-8'))
+                             ctrlfile.write('%s\n' % textwrap.fill(t, width=100000, initial_indent=' ', subsequent_indent=' '))
                      else:
                          # Auto indent
-                         ctrlfile.write('%s\n' % unicode(textwrap.fill(description.strip(), width=74, initial_indent=' ', subsequent_indent=' '),'utf-8'))
+                         ctrlfile.write('%s\n' % textwrap.fill(description.strip(), width=74, initial_indent=' ', subsequent_indent=' '))
 
                 else:
-                     ctrlfile.write(unicode(c % tuple(pullData(fs, localdata)),'utf-8'))
+                     ctrlfile.write(c % tuple(pullData(fs, localdata)))
         except KeyError:
             import sys
             (type, value, traceback) = sys.exc_info()
             bb.utils.unlockfile(lf)
             ctrlfile.close()
-            raise bb.build.FuncFailed("Missing field for deb generation: %s" % value)
-        except UnicodeDecodeError:
-            bb.utils.unlockfile(lf)
-            ctrlfile.close()
-            raise bb.build.FuncFailed("Non UTF-8 characters found in one of the fields")
+            bb.fatal("Missing field for deb generation: %s" % value)
 
         # more fields
 
         custom_fields_chunk = get_package_additional_metadata("deb", localdata)
         if custom_fields_chunk is not None:
-            ctrlfile.write(unicode(custom_fields_chunk))
+            ctrlfile.write(custom_fields_chunk)
             ctrlfile.write("\n")
 
         mapping_rename_hook(localdata)
@@ -234,7 +233,7 @@
 
         rdepends = bb.utils.explode_dep_versions2(localdata.getVar("RDEPENDS", True) or "")
         debian_cmp_remap(rdepends)
-        for dep in rdepends.keys():
+        for dep in list(rdepends.keys()):
                 if dep == pkg:
                         del rdepends[dep]
                         continue
@@ -242,30 +241,31 @@
                         del rdepends[dep]
         rrecommends = bb.utils.explode_dep_versions2(localdata.getVar("RRECOMMENDS", True) or "")
         debian_cmp_remap(rrecommends)
-        for dep in rrecommends.keys():
+        for dep in list(rrecommends.keys()):
                 if '*' in dep:
                         del rrecommends[dep]
         rsuggests = bb.utils.explode_dep_versions2(localdata.getVar("RSUGGESTS", True) or "")
         debian_cmp_remap(rsuggests)
         # Deliberately drop version information here, not wanted/supported by deb
         rprovides = dict.fromkeys(bb.utils.explode_dep_versions2(localdata.getVar("RPROVIDES", True) or ""), [])
+        rprovides = collections.OrderedDict(sorted(rprovides.items(), key=lambda x: x[0]))
         debian_cmp_remap(rprovides)
         rreplaces = bb.utils.explode_dep_versions2(localdata.getVar("RREPLACES", True) or "")
         debian_cmp_remap(rreplaces)
         rconflicts = bb.utils.explode_dep_versions2(localdata.getVar("RCONFLICTS", True) or "")
         debian_cmp_remap(rconflicts)
         if rdepends:
-            ctrlfile.write("Depends: %s\n" % unicode(bb.utils.join_deps(rdepends)))
+            ctrlfile.write("Depends: %s\n" % bb.utils.join_deps(rdepends))
         if rsuggests:
-            ctrlfile.write("Suggests: %s\n" % unicode(bb.utils.join_deps(rsuggests)))
+            ctrlfile.write("Suggests: %s\n" % bb.utils.join_deps(rsuggests))
         if rrecommends:
-            ctrlfile.write("Recommends: %s\n" % unicode(bb.utils.join_deps(rrecommends)))
+            ctrlfile.write("Recommends: %s\n" % bb.utils.join_deps(rrecommends))
         if rprovides:
-            ctrlfile.write("Provides: %s\n" % unicode(bb.utils.join_deps(rprovides)))
+            ctrlfile.write("Provides: %s\n" % bb.utils.join_deps(rprovides))
         if rreplaces:
-            ctrlfile.write("Replaces: %s\n" % unicode(bb.utils.join_deps(rreplaces)))
+            ctrlfile.write("Replaces: %s\n" % bb.utils.join_deps(rreplaces))
         if rconflicts:
-            ctrlfile.write("Conflicts: %s\n" % unicode(bb.utils.join_deps(rconflicts)))
+            ctrlfile.write("Conflicts: %s\n" % bb.utils.join_deps(rconflicts))
         ctrlfile.close()
 
         for script in ["preinst", "postinst", "prerm", "postrm"]:
@@ -277,7 +277,7 @@
                 scriptfile = open(os.path.join(controldir, script), 'w')
             except OSError:
                 bb.utils.unlockfile(lf)
-                raise bb.build.FuncFailed("unable to open %s script file for writing." % script)
+                bb.fatal("unable to open %s script file for writing" % script)
 
             if scriptvar.startswith("#!"):
                 pos = scriptvar.find("\n") + 1
@@ -293,7 +293,7 @@
             scriptfile.write(scriptvar[pos:])
             scriptfile.write('\n')
             scriptfile.close()
-            os.chmod(os.path.join(controldir, script), 0755)
+            os.chmod(os.path.join(controldir, script), 0o755)
 
         conffiles_str = ' '.join(get_conffiles(pkg, d))
         if conffiles_str:
@@ -301,7 +301,7 @@
                 conffiles = open(os.path.join(controldir, 'conffiles'), 'w')
             except OSError:
                 bb.utils.unlockfile(lf)
-                raise bb.build.FuncFailed("unable to open conffiles for writing.")
+                bb.fatal("unable to open conffiles for writing")
             for f in conffiles_str.split():
                 if os.path.exists(oe.path.join(root, f)):
                     conffiles.write('%s\n' % f)
@@ -311,10 +311,11 @@
         ret = subprocess.call("PATH=\"%s\" dpkg-deb -b %s %s" % (localdata.getVar("PATH", True), root, pkgoutdir), shell=True)
         if ret != 0:
             bb.utils.unlockfile(lf)
-            raise bb.build.FuncFailed("dpkg-deb execution failed")
+            bb.fatal("dpkg-deb execution failed")
 
         cleanupcontrol(root)
         bb.utils.unlockfile(lf)
+    os.chdir(oldcwd)
 }
 # Indirect references to these vars
 do_package_write_deb[vardeps] += "PKGV PKGR PKGV DESCRIPTION SECTION PRIORITY MAINTAINER DPKG_ARCH PN HOMEPAGE"