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path: root/drivers/infiniband/core/ucma.c
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Diffstat (limited to 'drivers/infiniband/core/ucma.c')
-rw-r--r--drivers/infiniband/core/ucma.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c
index eab43b17e9cf2..ec8fb289621fb 100644
--- a/drivers/infiniband/core/ucma.c
+++ b/drivers/infiniband/core/ucma.c
@@ -235,7 +235,7 @@ static struct ucma_multicast* ucma_alloc_multicast(struct ucma_context *ctx)
return NULL;
mutex_lock(&mut);
- mc->id = idr_alloc(&multicast_idr, mc, 0, 0, GFP_KERNEL);
+ mc->id = idr_alloc(&multicast_idr, NULL, 0, 0, GFP_KERNEL);
mutex_unlock(&mut);
if (mc->id < 0)
goto error;
@@ -1421,6 +1421,10 @@ static ssize_t ucma_process_join(struct ucma_file *file,
goto err3;
}
+ mutex_lock(&mut);
+ idr_replace(&multicast_idr, mc, mc->id);
+ mutex_unlock(&mut);
+
mutex_unlock(&file->mut);
ucma_put_ctx(ctx);
return 0;