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From 6914b67545633d23063d5c5812591c67df56c0cf Mon Sep 17 00:00:00 2001
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From: Harald Hoyer <harald@redhat.com>
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Date: Fri, 24 Oct 2014 13:19:58 +0200
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Subject: [PATCH] dracut: fixed module dependency handling
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Fail for "--modules" and "--force-add" dracut modules, if they or their
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dependencies cannot be included.
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(cherry picked from commit ab2f95e45ed9803c5cbee23f41201a0f934f8043)
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---
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 dracut-functions.sh | 37 ++++++++++++++++++++++++++-----------
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 dracut.sh           |  4 +++-
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 2 files changed, 29 insertions(+), 12 deletions(-)
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diff --git a/dracut-functions.sh b/dracut-functions.sh
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index 6e0b44ae..89438b29 100755
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--- a/dracut-functions.sh
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+++ b/dracut-functions.sh
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@@ -1215,13 +1215,17 @@ check_mount() {
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         fi
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     fi
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-
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     for _moddep in $(module_depends $_mod); do
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         # handle deps as if they were manually added
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-        [[ " $add_dracutmodules " == *\ $_moddep\ * ]] || \
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-            add_dracutmodules+=" $_moddep "
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-        [[ " $force_add_dracutmodules " == *\ $_moddep\ * ]] || \
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-            force_add_dracutmodules+=" $_moddep "
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+        [[ " $dracutmodules " == *\ $_mod\ * ]] \
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+            && [[ " $dracutmodules " != *\ $_moddep\ * ]] \
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+            && dracutmodules+=" $_moddep "
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+        [[ " $add_dracutmodules " == *\ $_mod\ * ]] \
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+            && [[ " $add_dracutmodules " != *\ $_moddep\ * ]] \
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+            && add_dracutmodules+=" $_moddep "
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+        [[ " $force_add_dracutmodules " == *\ $_mod\ * ]] \
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+            && [[ " $force_add_dracutmodules " != *\ $_moddep\ * ]] \
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+            && force_add_dracutmodules+=" $_moddep "
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         # if a module we depend on fail, fail also
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         if ! check_module $_moddep; then
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             derror "dracut module '$_mod' depends on '$_moddep', which can't be installed"
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@@ -1259,7 +1263,7 @@ check_module() {
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     fi
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     if [[ " $dracutmodules $add_dracutmodules $force_add_dracutmodules" == *\ $_mod\ * ]]; then
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-        if [[ " $force_add_dracutmodules " == *\ $_mod\ * ]]; then
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+        if [[ " $dracutmodules $force_add_dracutmodules " == *\ $_mod\ * ]]; then
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             module_check $_mod 1; ret=$?
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         else
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             module_check $_mod 0; ret=$?
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@@ -1270,7 +1274,11 @@ check_module() {
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         # module not in our list
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         if [[ $dracutmodules = all ]]; then
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             # check, if we can and should install this module
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-            module_check $_mod || return 1
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+            module_check $_mod; ret=$?
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+            if [[ $ret != 0 ]]; then
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+                [[ $2 ]] && return 1
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+                [[ $ret != 255 ]] && return 1
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+            fi
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         else
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             # skip this module
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             return 1
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@@ -1279,10 +1287,15 @@ check_module() {
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     for _moddep in $(module_depends $_mod); do
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         # handle deps as if they were manually added
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-        [[ " $add_dracutmodules " == *\ $_moddep\ * ]] || \
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-            add_dracutmodules+=" $_moddep "
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-        [[ " $force_add_dracutmodules " == *\ $_moddep\ * ]] || \
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-            force_add_dracutmodules+=" $_moddep "
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+        [[ " $dracutmodules " == *\ $_mod\ * ]] \
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+            && [[ " $dracutmodules " != *\ $_moddep\ * ]] \
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+            && dracutmodules+=" $_moddep "
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+        [[ " $add_dracutmodules " == *\ $_mod\ * ]] \
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+            && [[ " $add_dracutmodules " != *\ $_moddep\ * ]] \
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+            && add_dracutmodules+=" $_moddep "
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+        [[ " $force_add_dracutmodules " == *\ $_mod\ * ]] \
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+            && [[ " $force_add_dracutmodules " != *\ $_moddep\ * ]] \
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+            && force_add_dracutmodules+=" $_moddep "
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         # if a module we depend on fail, fail also
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         if ! check_module $_moddep; then
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             derror "dracut module '$_mod' depends on '$_moddep', which can't be installed"
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@@ -1319,11 +1332,13 @@ for_each_module_dir() {
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         [[ " $mods_to_load " == *\ $_mod\ * ]] && continue
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         [[ " $force_add_dracutmodules " != *\ $_mod\ * ]] \
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+            && [[ " $dracutmodules " != *\ $_mod\ * ]] \
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             && [[ " $omit_dracutmodules " == *\ $_mod\ * ]] \
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             && continue
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         derror "dracut module '$_mod' cannot be found or installed."
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         [[ " $force_add_dracutmodules " == *\ $_mod\ * ]] && exit 1
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+        [[ " $dracutmodules " == *\ $_mod\ * ]] && exit 1
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         [[ " $add_dracutmodules " == *\ $_mod\ * ]] && exit 1
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     done
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 }
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diff --git a/dracut.sh b/dracut.sh
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index eff096e5..74c59a0c 100755
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--- a/dracut.sh
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+++ b/dracut.sh
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@@ -1152,7 +1152,9 @@ fi
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 [[ -d "$systemdsystemconfdir" ]] || systemdsystemconfdir=/etc/systemd/system
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-export initdir dracutbasedir dracutmodules \
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+export initdir dracutbasedir \
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+    dracutmodules force_add_dracutmodules add_dracutmodules omit_dracutmodules \
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+    mods_to_load \
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     fw_dir drivers_dir debug no_kernel kernel_only \
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     omit_drivers mdadmconf lvmconf root_dev \
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     use_fstab fstab_lines libdirs fscks nofscks ro_mnt \