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-rw-r--r--kernel/resource.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/kernel/resource.c b/kernel/resource.c
index 3b3cedc52592..7640b3a947d0 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -7,7 +7,7 @@
* Arbitrary resource management.
*/
-#include <linux/module.h>
+#include <linux/export.h>
#include <linux/errno.h>
#include <linux/ioport.h>
#include <linux/init.h>
@@ -419,6 +419,9 @@ static int __find_resource(struct resource *root, struct resource *old,
else
tmp.end = root->end;
+ if (tmp.end < tmp.start)
+ goto next;
+
resource_clip(&tmp, constraint->min, constraint->max);
arch_remove_reservations(&tmp);
@@ -436,8 +439,10 @@ static int __find_resource(struct resource *root, struct resource *old,
return 0;
}
}
- if (!this)
+
+next: if (!this || this->end == root->end)
break;
+
if (this != old)
tmp.start = this->end + 1;
this = this->sibling;