Fix synchronization around accessing event list.
Signed-off-by: Sean Hefty <[EMAIL PROTECTED]>
---
drivers/infiniband/core/ucm.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
2b2a9f64d1bdba30894c575641c85ec798adca1c
diff --git a/drivers/infiniband/core/ucm.c b/drivers/infiniband/core/ucm.c
index f6a0596..168a7f3 100644
--- a/drivers/infiniband/core/ucm.c
+++ b/drivers/infiniband/core/ucm.c
@@ -1243,8 +1243,10 @@ static unsigned int ib_ucm_poll(struct f
poll_wait(filp, &file->poll_wait, wait);
+ down(&file->mutex);
if (!list_empty(&file->events))
mask = POLLIN | POLLRDNORM;
+ up(&file->mutex);
return mask;
}
--
1.0.6
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