lkml.org 
[lkml]   [2018]   [Sep]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] mmc: mxcmmc: replace spin_lock_irqsave with spin_lock in ISR
Date
As you are already in ISR, it is unnecessary to call spin_lock_irqsave.

Signed-off-by: jun qian <hangdianqj@163.com>
---
drivers/mmc/host/mxcmmc.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c
index de4e6e5bf304..4d17032d15ee 100644
--- a/drivers/mmc/host/mxcmmc.c
+++ b/drivers/mmc/host/mxcmmc.c
@@ -728,7 +728,6 @@ static void mxcmci_cmd_done(struct mxcmci_host *host, unsigned int stat)
static irqreturn_t mxcmci_irq(int irq, void *devid)
{
struct mxcmci_host *host = devid;
- unsigned long flags;
bool sdio_irq;
u32 stat;

@@ -740,9 +739,9 @@ static irqreturn_t mxcmci_irq(int irq, void *devid)

dev_dbg(mmc_dev(host->mmc), "%s: 0x%08x\n", __func__, stat);

- spin_lock_irqsave(&host->lock, flags);
+ spin_lock(&host->lock);
sdio_irq = (stat & STATUS_SDIO_INT_ACTIVE) && host->use_sdio;
- spin_unlock_irqrestore(&host->lock, flags);
+ spin_unlock(&host->lock);

if (mxcmci_use_dma(host) && (stat & (STATUS_WRITE_OP_DONE)))
mxcmci_writel(host, STATUS_WRITE_OP_DONE, MMC_REG_STATUS);
--
2.17.1


\
 
 \ /
  Last update: 2018-09-11 16:48    [W:0.044 / U:0.188 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site