From: Leon Romanovsky <leonro@xxxxxxxxxxxx>
In following patch, the allocation of AH will be moved to RDMA/core
responsibility with kzalloc and kfree out of drivers scope. It will
leave empty destroy_ah functions in drivers, to simplify the code
we will skip calls to driver destroy_ah if it is empty.
Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxxxx>
---
drivers/infiniband/core/verbs.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index 5a5e83f5f0fc..50436922b24f 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -934,12 +934,14 @@ int rdma_destroy_ah(struct ib_ah *ah, u32 flags)
{
const struct ib_gid_attr *sgid_attr = ah->sgid_attr;
struct ib_pd *pd;
- int ret;
+ int ret = 0;
might_sleep_if(flags & RDMA_DESTROY_AH_SLEEPABLE);
pd = ah->pd;
- ret = ah->device->ops.destroy_ah(ah, flags);
+
+ if (ah->device->ops.destroy_ah)
+ ret = ah->device->ops.destroy_ah(ah, flags);
if (!ret) {
atomic_dec(&pd->usecnt);
if (sgid_attr)
--
2.20.1
