diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index 20f0049db5e5c00e478c63cbc7519dbaeab5072a..8b299df0ee7b74ff093052afdf78543f08fdd1a4 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -735,6 +735,12 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf,
 		goto out;
 	}
 
+	if (!file->ucontext &&
+	    command != IB_USER_VERBS_CMD_GET_CONTEXT) {
+		ret = -EINVAL;
+		goto out;
+	}
+
 	flags = (hdr.command &
 		 IB_USER_VERBS_CMD_FLAGS_MASK) >> IB_USER_VERBS_CMD_FLAGS_SHIFT;
 
@@ -745,12 +751,6 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf,
 			goto out;
 		}
 
-		if (!file->ucontext &&
-		    command != IB_USER_VERBS_CMD_GET_CONTEXT) {
-			ret = -EINVAL;
-			goto out;
-		}
-
 		if (hdr.in_words * 4 != count) {
 			ret = -EINVAL;
 			goto out;