1 files changed, 1 insertions, 1 deletions

diff --git a/kernel/resource.c b/kernel/resource.c
index 35c99ac02c7..52f696f11ad 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -266,7 +266,7 @@ static int find_resource(struct resource *root, struct resource *new,
                 new->start = (new->start + align - 1) & ~(align - 1);
                 if (alignf)
                         alignf(alignf_data, new, size, align);
-                if (new->start < new->end && new->end - new->start + 1 >= size) {
+                if (new->start < new->end && new->end - new->start >= size - 1) {
                         new->end = new->start + size - 1;
                         return 0;
                 }