linux-kernel - [PATCH 4/6] slimbus: Use GFP

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Date:   Tue,  2 Jan 2018 17:54:22 +0000
From:   srinivas.kandagatla@...aro.org
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     sdharia@...eaurora.org, linux-arm-msm@...r.kernel.org,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
        Wei Yongjun <weiyongjun1@...wei.com>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Subject: [PATCH 4/6] slimbus: Use GFP_ATOMIC under spin lock

From: Wei Yongjun <weiyongjun1@...wei.com>

A spin lock is taken here so we should use GFP_ATOMIC.

Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
---
 drivers/slimbus/messaging.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/slimbus/messaging.c b/drivers/slimbus/messaging.c
index 8b2c77f516b9..a9a6dc4af0da 100644
--- a/drivers/slimbus/messaging.c
+++ b/drivers/slimbus/messaging.c
@@ -98,7 +98,7 @@ int slim_do_transfer(struct slim_controller *ctrl, struct slim_msg_txn *txn)
 	if (need_tid) {
 		spin_lock_irqsave(&ctrl->txn_lock, flags);
 		tid = idr_alloc(&ctrl->tid_idr, txn, 0,
-				SLIM_MAX_TIDS, GFP_KERNEL);
+				SLIM_MAX_TIDS, GFP_ATOMIC);
 		txn->tid = tid;
 
 		if (!txn->msg->comp)
-- 
2.15.0