1 files changed, 20 insertions, 0 deletions

diff --git a/arch/powerpc/mm/lmb.c b/arch/powerpc/mm/lmb.c
index 9584608fd768..874cd103ce6e 100644
--- a/arch/powerpc/mm/lmb.c
+++ b/arch/powerpc/mm/lmb.c
@@ -31,6 +31,8 @@
 #define DBG(fmt...)
 #endif
 
+#define LMB_ALLOC_ANYWHERE      0
+
 struct lmb lmb;
 
 void lmb_dump_all(void)
@@ -197,6 +199,8 @@ long __init lmb_reserve(unsigned long base, unsigned long size)
 {
         struct lmb_region *_rgn = &(lmb.reserved);
 
+        BUG_ON(0 == size);
+
         return lmb_add_region(_rgn, base, size);
 }
 
@@ -224,9 +228,25 @@ unsigned long __init lmb_alloc(unsigned long size, unsigned long align)
 unsigned long __init lmb_alloc_base(unsigned long size, unsigned long align,
                                     unsigned long max_addr)
 {
+        unsigned long alloc;
+
+        alloc = __lmb_alloc_base(size, align, max_addr);
+
+        if (alloc < 0)
+                panic("ERROR: Failed to allocate 0x%lx bytes below 0x%lx.\n",
+                                size, max_addr);
+
+        return alloc;
+}
+
+unsigned long __init __lmb_alloc_base(unsigned long size, unsigned long align,
+                                    unsigned long max_addr)
+{
         long i, j;
         unsigned long base = 0;
 
+        BUG_ON(0 == size);
+
 #ifdef CONFIG_PPC32
         /* On 32-bit, make sure we allocate lowmem */
         if (max_addr == LMB_ALLOC_ANYWHERE)