mmc: sdhci-s3c: Use devm_clk_get()

Commit Message

Jingoo Han Jan. 9, 2013, 2:11 a.m. UTC

The devm_ functions allocate memory that is released when a driver
detaches. This patch uses devm_clk_get() for these functions.
These make the code smaller and a bit simpler.

Signed-off-by: Jingoo Han <[e-mail]>
---
 drivers/mmc/host/sdhci-s3c.c |   17 ++---------------
 1 files changed, 2 insertions(+), 15 deletions(-)

Patch

diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
index 82a8de1..5aaef5b 100644
--- a/drivers/mmc/host/sdhci-s3c.c
+++ b/drivers/mmc/host/sdhci-s3c.c
@@ -608,7 +608,7 @@  static int sdhci_s3c_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, host);
 
-	sc->clk_io = clk_get(dev, "hsmmc");
+	sc->clk_io = devm_clk_get(dev, "hsmmc");
 	if (IS_ERR(sc->clk_io)) {
 		dev_err(dev, "failed to get io clock\n");
 		ret = PTR_ERR(sc->clk_io);
@@ -623,7 +623,7 @@  static int sdhci_s3c_probe(struct platform_device *pdev)
 		char name[14];
 
 		snprintf(name, 14, "mmc_busclk.%d", ptr);
-		clk = clk_get(dev, name);
+		clk = devm_clk_get(dev, name);
 		if (IS_ERR(clk))
 			continue;
 
@@ -765,15 +765,9 @@  static int sdhci_s3c_probe(struct platform_device *pdev)
 #ifndef CONFIG_PM_RUNTIME
 	clk_disable_unprepare(sc->clk_bus[sc->cur_clk]);
 #endif
-	for (ptr = 0; ptr < MAX_BUS_CLK; ptr++) {
-		if (sc->clk_bus[ptr]) {
-			clk_put(sc->clk_bus[ptr]);
-		}
-	}
 
  err_no_busclks:
 	clk_disable_unprepare(sc->clk_io);
-	clk_put(sc->clk_io);
 
  err_pdata_io_clk:
 	sdhci_free_host(host);
@@ -786,7 +780,6 @@  static int sdhci_s3c_remove(struct platform_device *pdev)
 	struct sdhci_host *host =  platform_get_drvdata(pdev);
 	struct sdhci_s3c *sc = sdhci_priv(host);
 	struct s3c_sdhci_platdata *pdata = sc->pdata;
-	int ptr;
 
 	if (pdata->cd_type == S3C_SDHCI_CD_EXTERNAL && pdata->ext_cd_cleanup)
 		pdata->ext_cd_cleanup(&sdhci_s3c_notify_change);
@@ -806,13 +799,7 @@  static int sdhci_s3c_remove(struct platform_device *pdev)
 #ifndef CONFIG_PM_RUNTIME
 	clk_disable_unprepare(sc->clk_bus[sc->cur_clk]);
 #endif
-	for (ptr = 0; ptr < MAX_BUS_CLK; ptr++) {
-		if (sc->clk_bus[ptr]) {
-			clk_put(sc->clk_bus[ptr]);
-		}
-	}
 	clk_disable_unprepare(sc->clk_io);
-	clk_put(sc->clk_io);
 
 	sdhci_free_host(host);
 	platform_set_drvdata(pdev, NULL);