mmc: sh-mmcif: use devm_ for irq management

Use devm_request_threaded_irq() for the host interrupt handlers so we
do not have to worry about freeing them on exit or error. Tidies up the
exit path code for the driver.

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

1 files changed, 8 insertions, 18 deletions

diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c
index ec9bda30da73..a0776cec070c 100644
--- a/drivers/mmc/host/sh_mmcif.c
+++ b/drivers/mmc/host/sh_mmcif.c
@@ -1440,17 +1440,19 @@ static int sh_mmcif_probe(struct platform_device *pdev)
         sh_mmcif_writel(host->addr, MMCIF_CE_INT_MASK, MASK_ALL);
 
         name = irq[1] < 0 ? dev_name(&pdev->dev) : "sh_mmc:error";
-        ret = request_threaded_irq(irq[0], sh_mmcif_intr, sh_mmcif_irqt, 0, name, host);
+        ret = devm_request_threaded_irq(&pdev->dev, irq[0], sh_mmcif_intr,
+                                        sh_mmcif_irqt, 0, name, host);
         if (ret) {
                 dev_err(&pdev->dev, "request_irq error (%s)\n", name);
-                goto ereqirq0;
+                goto err_irq;
         }
         if (irq[1] >= 0) {
-                ret = request_threaded_irq(irq[1], sh_mmcif_intr, sh_mmcif_irqt,
-                                           0, "sh_mmc:int", host);
+                ret = devm_request_threaded_irq(&pdev->dev, irq[1],
+                                                sh_mmcif_intr, sh_mmcif_irqt,
+                                                0, "sh_mmc:int", host);
                 if (ret) {
                         dev_err(&pdev->dev, "request_irq error (sh_mmc:int)\n");
-                        goto ereqirq1;
+                        goto err_irq;
                 }
         }
 
@@ -1477,11 +1479,7 @@ static int sh_mmcif_probe(struct platform_device *pdev)
 
 emmcaddh:
 erqcd:
-        if (irq[1] >= 0)
-                free_irq(irq[1], host);
-ereqirq1:
-        free_irq(irq[0], host);
-ereqirq0:
+err_irq:
         pm_runtime_suspend(&pdev->dev);
 err_clk:
         clk_disable_unprepare(host->hclk);
@@ -1495,7 +1493,6 @@ err_host:
 static int sh_mmcif_remove(struct platform_device *pdev)
 {
         struct sh_mmcif_host *host = platform_get_drvdata(pdev);
-        int irq[2];
 
         host->dying = true;
         clk_prepare_enable(host->hclk);
@@ -1513,13 +1510,6 @@ static int sh_mmcif_remove(struct platform_device *pdev)
          */
         cancel_delayed_work_sync(&host->timeout_work);
 
-        irq[0] = platform_get_irq(pdev, 0);
-        irq[1] = platform_get_irq(pdev, 1);
-
-        free_irq(irq[0], host);
-        if (irq[1] >= 0)
-                free_irq(irq[1], host);
-
         clk_disable_unprepare(host->hclk);
         mmc_free_host(host->mmc);
         pm_runtime_put_sync(&pdev->dev);