[PATCH 7/7] IB/srp: Avoid that mapping failure triggers an infinite loop

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Signed-off-by: Bart Van Assche <bart.vanassche@xxxxxxxxxxx>
Cc: Sagi Grimberg <sagig@xxxxxxxxxxxx>
Cc: Sebastian Parschauer <sebastian.riemer@xxxxxxxxxxxxxxxx>
---
 drivers/infiniband/ulp/srp/ib_srp.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index 47c3a72..59d3ff9 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -1666,6 +1666,8 @@ map_complete:
 
 unmap:
 	srp_unmap_data(scmnd, ch, req, true);
+	if (ret == -ENOMEM && req->nmdesc >= target->mr_pool_size)
+		ret = -E2BIG;
 	return ret;
 }
 
-- 
2.1.4

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