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>

diff --git a/drivers/misc/atmel_tclib.c b/drivers/misc/atmel_tclib.c
index 3891124001f28331946b284a22564e15b029ce6a..a844810b50f68a6a88e12ed7a427862a044efc48 100644 (file)
--- a/drivers/misc/atmel_tclib.c
+++ b/drivers/misc/atmel_tclib.c
@@ -75,7 +75,7 @@ out:
        return tc;
 
 fail_ioremap:
-       release_resource(r);
+       release_mem_region(r->start, ATMEL_TC_IOMEM_SIZE);
 fail:
        tc = NULL;
        goto out;
@@ -95,7 +95,7 @@ void atmel_tc_free(struct atmel_tc *tc)
        spin_lock(&tc_list_lock);
        if (tc->regs) {
                iounmap(tc->regs);
-               release_resource(tc->iomem);
+               release_mem_region(tc->iomem->start, ATMEL_TC_IOMEM_SIZE);
                tc->regs = NULL;
                tc->iomem = NULL;
        }