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drivers/misc/atmel_tclib.c: fix a memory leak

request_mem_region() will call kzalloc to allocate memory for struct
resource.  release_resource() unregisters the resource but does not free
the allocated memory, thus use release_mem_region() instead to fix the
memory leak.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Axel Lin 14 年之前
父節點
當前提交
a844b43ca0
共有 1 個文件被更改,包括 2 次插入2 次删除
  1. 2 2
      drivers/misc/atmel_tclib.c

+ 2 - 2
drivers/misc/atmel_tclib.c

@@ -75,7 +75,7 @@ out:
 	return tc;
 	return tc;
 
 
 fail_ioremap:
 fail_ioremap:
-	release_resource(r);
+	release_mem_region(r->start, ATMEL_TC_IOMEM_SIZE);
 fail:
 fail:
 	tc = NULL;
 	tc = NULL;
 	goto out;
 	goto out;
@@ -95,7 +95,7 @@ void atmel_tc_free(struct atmel_tc *tc)
 	spin_lock(&tc_list_lock);
 	spin_lock(&tc_list_lock);
 	if (tc->regs) {
 	if (tc->regs) {
 		iounmap(tc->regs);
 		iounmap(tc->regs);
-		release_resource(tc->iomem);
+		release_mem_region(tc->iomem->start, ATMEL_TC_IOMEM_SIZE);
 		tc->regs = NULL;
 		tc->regs = NULL;
 		tc->iomem = NULL;
 		tc->iomem = NULL;
 	}
 	}