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path: root/drivers/of/of_reserved_mem.c
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Diffstat (limited to 'drivers/of/of_reserved_mem.c')
-rw-r--r--drivers/of/of_reserved_mem.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/of/of_reserved_mem.c b/drivers/of/of_reserved_mem.c
index bcd154485972..a7fbc5e37e19 100644
--- a/drivers/of/of_reserved_mem.c
+++ b/drivers/of/of_reserved_mem.c
@@ -200,6 +200,16 @@ static int __init __rmem_cmp(const void *a, const void *b)
if (ra->base > rb->base)
return 1;
+ /*
+ * Put the dynamic allocations (address == 0, size == 0) before static
+ * allocations at address 0x0 so that overlap detection works
+ * correctly.
+ */
+ if (ra->size < rb->size)
+ return -1;
+ if (ra->size > rb->size)
+ return 1;
+
return 0;
}
@@ -217,8 +227,7 @@ static void __init __rmem_check_for_overlap(void)
this = &reserved_mem[i];
next = &reserved_mem[i + 1];
- if (!(this->base && next->base))
- continue;
+
if (this->base + this->size > next->base) {
phys_addr_t this_end, next_end;