drcut-kdump.sh: cleanup kdump.conf check

move conf_file as a global variable to the top.
vivek: return earlier if kdump.conf is not found in read_kdump_conf to
avoid the deep indent.

Signed-off-by: Dave Young <dyoung@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>

dracut-kdump.sh

@@ -13,6 +13,7 @@ KDUMP_SCRIPT_DIR="/kdumpscripts"
 DD_BLKSIZE=512
 FINAL_ACTION="reboot -f"
 DUMP_RETVAL=0
+conf_file="/etc/kdump.conf"
 
 export PATH=$PATH:$KDUMP_SCRIPT_DIR
 
@@ -124,8 +125,11 @@ dump_ssh()
 
 read_kdump_conf()
 {
-    local conf_file="/etc/kdump.conf"
-    if [ -f "$conf_file" ]; then
+    if [ ! -f "$conf_file" ]; then
+        echo "$conf_file not found"
+        return
+    fi
+
     # first get the necessary variables
     while read config_opt config_val;
     do
@@ -180,7 +184,6 @@ read_kdump_conf()
             ;;
         esac
     done < $conf_file
-    fi
 }
 
 read_kdump_conf