From: Alexander Aring <alex.aring@gmail.com>
Date: Tue, 7 Oct 2014 08:38:26 +0000 (+0200)
Subject: at86rf230: add missing error handling
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=d06c21990fbbca644a31a3c851c22a8d1f5d0e66;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

at86rf230: add missing error handling

This patch adds an async error handling function if sync state change
runs into a timeout. The async error handling function tries to recover
the phy state machine into a valid state.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---

diff --git a/drivers/net/ieee802154/at86rf230.c b/drivers/net/ieee802154/at86rf230.c
index 6857038111a0..44d2f1de31e0 100644
--- a/drivers/net/ieee802154/at86rf230.c
+++ b/drivers/net/ieee802154/at86rf230.c
@@ -690,8 +690,10 @@ at86rf230_sync_state_change(struct at86rf230_local *lp, unsigned int state)
 
 	rc = wait_for_completion_timeout(&lp->state_complete,
 					 msecs_to_jiffies(100));
-	if (!rc)
+	if (!rc) {
+		at86rf230_async_error(lp, &lp->state, -ETIMEDOUT);
 		return -ETIMEDOUT;
+	}
 
 	return 0;
 }