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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 @@
7 * Arbitrary resource management. 7 * Arbitrary resource management.
8 */ 8 */
9 9
10#include <linux/module.h> 10#include <linux/export.h>
11#include <linux/errno.h> 11#include <linux/errno.h>
12#include <linux/ioport.h> 12#include <linux/ioport.h>
13#include <linux/init.h> 13#include <linux/init.h>
@@ -419,6 +419,9 @@ static int __find_resource(struct resource *root, struct resource *old,
419 else 419 else
420 tmp.end = root->end; 420 tmp.end = root->end;
421 421
422 if (tmp.end < tmp.start)
423 goto next;
424
422 resource_clip(&tmp, constraint->min, constraint->max); 425 resource_clip(&tmp, constraint->min, constraint->max);
423 arch_remove_reservations(&tmp); 426 arch_remove_reservations(&tmp);
424 427
@@ -436,8 +439,10 @@ static int __find_resource(struct resource *root, struct resource *old,
436 return 0; 439 return 0;
437 } 440 }
438 } 441 }
439 if (!this) 442
443next: if (!this || this->end == root->end)
440 break; 444 break;
445
441 if (this != old) 446 if (this != old)
442 tmp.start = this->end + 1; 447 tmp.start = this->end + 1;
443 this = this->sibling; 448 this = this->sibling;