linux-kernel - [PATCH] dmaengine: qcom: gpi: move read_lock_bh to read

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Message-Id: <20220822134631.16547-1-91tuocao@gmail.com>
Date:   Mon, 22 Aug 2022 21:46:31 +0800
From:   Tuo Cao <91tuocao@...il.com>
To:     agross@...nel.org, bjorn.andersson@...aro.org,
        konrad.dybcio@...ainline.org, vkoul@...nel.org
Cc:     linux-arm-msm@...r.kernel.org, dmaengine@...r.kernel.org,
        linux-kernel@...r.kernel.org, 91tuocao@...il.com
Subject: [PATCH] dmaengine: qcom: gpi: move read_lock_bh to read_lock in tasklet

it is unnecessary to call read_lock_bh in a tasklet.

Signed-off-by: Tuo Cao <91tuocao@...il.com>
---
 drivers/dma/qcom/gpi.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/dma/qcom/gpi.c b/drivers/dma/qcom/gpi.c
index 8f0c9c4e2efd..236005f7dd30 100644
--- a/drivers/dma/qcom/gpi.c
+++ b/drivers/dma/qcom/gpi.c
@@ -1150,9 +1150,9 @@ static void gpi_ev_tasklet(unsigned long data)
 {
 	struct gpii *gpii = (struct gpii *)data;
 
-	read_lock_bh(&gpii->pm_lock);
+	read_lock(&gpii->pm_lock);
 	if (!REG_ACCESS_VALID(gpii->pm_state)) {
-		read_unlock_bh(&gpii->pm_lock);
+		read_unlock(&gpii->pm_lock);
 		dev_err(gpii->gpi_dev->dev, "not processing any events, pm_state:%s\n",
 			TO_GPI_PM_STR(gpii->pm_state));
 		return;
@@ -1163,7 +1163,7 @@ static void gpi_ev_tasklet(unsigned long data)
 
 	/* enable IEOB, switching back to interrupts */
 	gpi_config_interrupts(gpii, MASK_IEOB_SETTINGS, 1);
-	read_unlock_bh(&gpii->pm_lock);
+	read_unlock(&gpii->pm_lock);
 }
 
 /* marks all pending events for the channel as stale */
-- 
2.17.1