[PATCH V5 2/2] nvme: allow open for nvme-generic char device

[javier at javigon.com]

From: Minwoo Im <minwoo.im.dev at gmail.com>

Keep rejecting the hidden device access via open, but allow cases
through the nvme-generic char device.

Signed-off-by: Minwoo Im <minwoo.im.dev at gmail.com>
---
 drivers/nvme/host/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index d4884105ad95..0d0522bd4c2f 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -1885,7 +1885,7 @@ static int nvme_ns_open(struct nvme_ns *ns)
 {
 #ifdef CONFIG_NVME_MULTIPATH
 	/* should never be called due to GENHD_FL_HIDDEN */
-	if (WARN_ON_ONCE(ns->head->disk))
+	if (WARN_ON_ONCE(!nvme_ns_is_generic(ns) && ns->head->disk))
 		goto fail;
 #endif
 	if (!kref_get_unless_zero(&ns->kref))
-- 
2.17.1