Commit 4459398b authored Jul 31, 2017 by Keerthy Committed by Arnd Bergmann Aug 21, 2017

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



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-keerthy@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

parent 4dd6a997

drivers/soc/ti/knav_qmss_queue.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -745,6 +745,9 @@ void knav_pool_create(const char name,
		bool slot_found;
		int ret;

		if (!kdev)
		return ERR_PTR(-EPROBE_DEFER);

		if (!kdev->dev)
		return ERR_PTR(-ENODEV);