wil6210: fix memory leak in the AP flow
When switching between STA and AP modes, memory allocated for Rx vring leaks
This is because start_ap() allocates Rx vring but stop_ap() do not free it.
Logically, Rx vring is not valid (HW can't use it anymore), so free it in reset()
Also, check double init for Rx vring and bail out with -EINVAL
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/wil6210/txrx.c b/drivers/net/wireless/ath/wil6210/txrx.c
index 5cda0ea9..97d036a 100644
--- a/drivers/net/wireless/ath/wil6210/txrx.c
+++ b/drivers/net/wireless/ath/wil6210/txrx.c
@@ -557,6 +557,11 @@
struct vring *vring = &wil->vring_rx;
int rc;
+ if (vring->va) {
+ wil_err(wil, "Rx ring already allocated\n");
+ return -EINVAL;
+ }
+
vring->size = WIL6210_RX_RING_SIZE;
rc = wil_vring_alloc(wil, vring);
if (rc)