initramfs-framework: support kernel cmdline with double quotes

It avoids init to crash when kernel cmdline contains a string with
spaces inside, like that:
dyndbg="file drivers/usb/core/hub.c +pltf"

(From OE-Core rev: 16bad6260a6a25b2ec25c7eb0dfe526db56f166e)

Signed-off-by: Christophe Guibout <christophe.guibout@st.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit 88b8b94bd2d052bca29d27bd5cd00eddb0f5999d)
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 13 insertions, 0 deletions

diff --git a/meta/recipes-core/initrdscripts/initramfs-framework/init b/meta/recipes-core/initrdscripts/initramfs-framework/init
index c71ce0ce8c..567694aff7 100755
--- a/meta/recipes-core/initrdscripts/initramfs-framework/init
+++ b/meta/recipes-core/initrdscripts/initramfs-framework/init
@@ -88,12 +88,25 @@ fi
 
 # populate bootparam environment
 for p in `cat /proc/cmdline`; do
+        if [ -n "$quoted" ]; then
+                value="$value $p"
+                if [ "`echo $p | sed -e 's/\"$//'`" != "$p" ]; then
+                        eval "bootparam_${quoted}=${value}"
+                        unset quoted
+                fi
+                continue
+        fi
+
         opt=`echo $p | cut -d'=' -f1`
         opt=`echo $opt | sed -e 'y/.-/__/'`
         if [ "`echo $p | cut -d'=' -f1`" = "$p" ]; then
                 eval "bootparam_${opt}=true"
         else
                 value="`echo $p | cut -d'=' -f2-`"
+                if [ "`echo $value | sed -e 's/^\"//'`" != "$value" ]; then
+                        quoted=${opt}
+                        continue
+                fi
                 eval "bootparam_${opt}=\"${value}\""
         fi
 done