lkml.org 
[lkml]   [2016]   [Feb]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v5 05/13] mmc: sdhci-of-arasan: fix clk issue in sdhci_arasan_remove()
Date
sdhci_pltfm_unregister() could operate host's registers, it will cause
problems if the clk is already disabled and unprepared. Fix this issue
by moving the clk_disable_unprepare() call to the end of remove
function.

Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Acked-by: Sören Brinkmann <soren.brinkmann@xilinx.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
---
drivers/mmc/host/sdhci-of-arasan.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/host/sdhci-of-arasan.c b/drivers/mmc/host/sdhci-of-arasan.c
index 5d9fdb3..8b4f8f7 100644
--- a/drivers/mmc/host/sdhci-of-arasan.c
+++ b/drivers/mmc/host/sdhci-of-arasan.c
@@ -201,13 +201,16 @@ clk_dis_ahb:

static int sdhci_arasan_remove(struct platform_device *pdev)
{
+ int ret;
struct sdhci_host *host = platform_get_drvdata(pdev);
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
struct sdhci_arasan_data *sdhci_arasan = pltfm_host->priv;

+ ret = sdhci_pltfm_unregister(pdev);
+
clk_disable_unprepare(sdhci_arasan->clk_ahb);

- return sdhci_pltfm_unregister(pdev);
+ return ret;
}

static const struct of_device_id sdhci_arasan_of_match[] = {
--
2.7.0
\
 
 \ /
  Last update: 2016-02-16 14:41    [W:0.088 / U:0.044 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site