[PATCH 1/2] soc: ti: k3-navss-ringacc: NULL check before dereference

[Andrew Goodbody]

Move the first dereference of ring to after the NULL check has occurred.
This will prevent any possible dereference of NULL.

This issue was found by Smatch.

Signed-off-by: Andrew Goodbody <andrew.goodbody at linaro.org>
---
 drivers/soc/ti/k3-navss-ringacc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/soc/ti/k3-navss-ringacc.c b/drivers/soc/ti/k3-navss-ringacc.c
index 14114a65830..ac29158d489 100644
--- a/drivers/soc/ti/k3-navss-ringacc.c
+++ b/drivers/soc/ti/k3-navss-ringacc.c
@@ -632,12 +632,14 @@ err_free_ops:
 int k3_nav_ringacc_ring_cfg(struct k3_nav_ring *ring,
 			    struct k3_nav_ring_cfg *cfg)
 {
-	struct k3_nav_ringacc *ringacc = ring->parent;
+	struct k3_nav_ringacc *ringacc;
 	int ret = 0;
 
 	if (!ring || !cfg)
 		return -EINVAL;
 
+	ringacc = ring->parent;
+
 	if (ringacc->dual_ring)
 		return k3_dmaring_ring_cfg(ring, cfg);
 

-- 
2.39.5