grub2/0172-grub-core-kern-main.c-grub_set_prefix_and_root-Strip.patch

From 7a75aadaef0e9d8d36e4c24e906b36336854db7e Mon Sep 17 00:00:00 2001
From: Vladimir 'phcoder' Serbinenko <phcoder@gmail.com>
Date: Fri, 1 Mar 2013 10:35:51 +0100
Subject: [PATCH 172/471] 	* grub-core/kern/main.c
 (grub_set_prefix_and_root): Strip trailing 	platform from firmware path.

---
 ChangeLog             |  5 +++++
 grub-core/kern/main.c | 11 ++++++++++-
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index 135586c..986871c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2013-03-01  Vladimir Serbinenko  <phcoder@gmail.com>
+
+	* grub-core/kern/main.c (grub_set_prefix_and_root): Strip trailing
+	platform from firmware path.
+
 2013-02-28  Vladimir Serbinenko  <phcoder@gmail.com>
 
 	Enable linux16 on non-BIOS systems for i.a. memtest.
diff --git a/grub-core/kern/main.c b/grub-core/kern/main.c
index 3262444..c43ac6b 100644
--- a/grub-core/kern/main.c
+++ b/grub-core/kern/main.c
@@ -168,7 +168,16 @@ grub_set_prefix_and_root (void)
   else
     grub_free (fwdevice);
   if (fwpath && !path)
-    path = fwpath;
+    {
+      grub_size_t len = grub_strlen (fwpath);
+      while (len > 1 && fwpath[len - 1] == '/')
+	fwpath[--len] = 0;
+      if (len >= sizeof (GRUB_TARGET_CPU "-" GRUB_PLATFORM) - 1
+	  && grub_memcmp (fwpath + len - (sizeof (GRUB_TARGET_CPU "-" GRUB_PLATFORM) - 1), GRUB_TARGET_CPU "-" GRUB_PLATFORM,
+			  sizeof (GRUB_TARGET_CPU "-" GRUB_PLATFORM) - 1) == 0)
+	fwpath[len - (sizeof (GRUB_TARGET_CPU "-" GRUB_PLATFORM) - 1)] = 0;
+      path = fwpath;
+    }
   else
     grub_free (fwpath);
   if (device)
-- 
1.8.2.1