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Subject[PATCH AUTOSEL for 4.9 112/190] IB/rdmavt: restore IRQs on error path in rvt_create_ah()
Date
From: Dan Carpenter <dan.carpenter@oracle.com>

[ Upstream commit f0bb2d44ca26b7090dc7bade8877b77005f07dfc ]

We need to call spin_unlock_irqrestore() instead of vanilla
spin_unlock() on this error path.

Fixes: 119a8e708d16 ("IB/rdmavt: Add AH to rdmavt")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Acked-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
drivers/infiniband/sw/rdmavt/ah.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/sw/rdmavt/ah.c b/drivers/infiniband/sw/rdmavt/ah.c
index 16c446142c2a..b0f09fb45c72 100644
--- a/drivers/infiniband/sw/rdmavt/ah.c
+++ b/drivers/infiniband/sw/rdmavt/ah.c
@@ -119,7 +119,7 @@ struct ib_ah *rvt_create_ah(struct ib_pd *pd,

spin_lock_irqsave(&dev->n_ahs_lock, flags);
if (dev->n_ahs_allocated == dev->dparms.props.max_ah) {
- spin_unlock(&dev->n_ahs_lock);
+ spin_unlock_irqrestore(&dev->n_ahs_lock, flags);
kfree(ah);
return ERR_PTR(-ENOMEM);
}
--
2.14.1
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