Bug fix in ipoib_poll
ipoib_poll may return negative values in case of errors and cause
data corruption. In addition if it returns 0 we can break the loop.
Signed-off-by: Eli Cohen <[EMAIL PROTECTED]>
---
drivers/infiniband/ulp/ipoib/ipoib_ib.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c
b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
index 5063dd5..d98980c 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
@@ -296,6 +296,8 @@ poll_more:
t = min(IPOIB_NUM_WC, max);
n = ib_poll_cq(priv->cq, t, priv->ibwc);
+ if (unlikely(n < 1))
+ break;
for (i = 0; i < n; i++) {
struct ib_wc *wc = priv->ibwc + i;
--
1.5.3.6
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