[PATCH] hv: use correct order when freeing monitor_pages
From: Radim KrÄmÃÅ
Date: Tue May 27 2014 - 13:16:40 EST
We try to free two pages when only one has been allocated.
Cleanup path is unlikely, so I haven't found any trace that would fit,
but I hope that free_pages_prepare() does catch it.
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Radim KrÄmÃÅ <rkrcmar@xxxxxxxxxx>
---
Cc'd stable because the worst-case looks hard to debug.
Btw. the module can't get unloaded after we successfully connect?
drivers/hv/connection.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/hv/connection.c b/drivers/hv/connection.c
index 7f10c15..e84f452 100644
--- a/drivers/hv/connection.c
+++ b/drivers/hv/connection.c
@@ -224,8 +224,8 @@ cleanup:
vmbus_connection.int_page = NULL;
}
- free_pages((unsigned long)vmbus_connection.monitor_pages[0], 1);
- free_pages((unsigned long)vmbus_connection.monitor_pages[1], 1);
+ free_pages((unsigned long)vmbus_connection.monitor_pages[0], 0);
+ free_pages((unsigned long)vmbus_connection.monitor_pages[1], 0);
vmbus_connection.monitor_pages[0] = NULL;
vmbus_connection.monitor_pages[1] = NULL;
--
1.9.3
--
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