[PATCH] soc: ti: knav: Add a NULL pointer check for kdev in knav_pool_create

[Keerthy]

knav_pool_create is an exported function. In the event of a call
before knav_queue_probe, we encounter a NULL pointer dereference
in the following line. Hence return -EPROBE_DEFER to the caller till
the kdev pointer is non-NULL.

Signed-off-by: Keerthy <j-keer...@ti.com>
---
 drivers/soc/ti/knav_qmss_queue.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/soc/ti/knav_qmss_queue.c b/drivers/soc/ti/knav_qmss_queue.c
index 279e7c5..d91626b 100644
--- a/drivers/soc/ti/knav_qmss_queue.c
+++ b/drivers/soc/ti/knav_qmss_queue.c
@@ -745,6 +745,9 @@ void *knav_pool_create(const char *name,
        bool slot_found;
        int ret;
 
+       if (!kdev)
+               return -EPROBE_DEFER;
+
        if (!kdev->dev)
                return ERR_PTR(-ENODEV);
 
-- 
1.9.1