[PATCH] fix: ath11k: ath11k_ahb_fw_resources_init: fix device_node reference leak on setup failure

[WenTao Liang]

of_get_child_by_name acquires a device_node reference. When the
  subsequent ath11k_ahb_setup_msa_resources call fails, the function
  returns immediately without calling of_node_put, leaking the node
  reference.

Add of_node_put before returning on the setup failure error path.

Cc: stable@xxxxxxxxxxxxxxx
Fixes: d5c65159f289 ("ath11k: driver for Qualcomm IEEE 802.11ax devices")
Signed-off-by: WenTao Liang <vulab@xxxxxxxxxxx>
---
 drivers/net/wireless/ath/ath11k/ahb.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/ath/ath11k/ahb.c b/drivers/net/wireless/ath/ath11k/ahb.c
index 08d3a0c8f105..8a08275db40a 100644
--- a/drivers/net/wireless/ath/ath11k/ahb.c
+++ b/drivers/net/wireless/ath/ath11k/ahb.c
@@ -996,6 +996,7 @@ static int ath11k_ahb_fw_resources_init(struct ath11k_base *ab)
 	ret = ath11k_ahb_setup_msa_resources(ab);
 	if (ret) {
 		ath11k_err(ab, "failed to setup msa resources\n");
+		of_node_put(node);
 		return ret;
 	}
 
-- 
2.39.5 (Apple Git-154)