[PATCH 5/8] mtd: lpc32xx_slc: Use devm_*() functions

Jingoo Han
2013-12-20T05:01:42Z

Use devm_*() functions to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
---
drivers/mtd/nand/lpc32xx_slc.c | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/mtd/nand/lpc32xx_slc.c b/drivers/mtd/nand/lpc32xx_slc.c
index 23e6974..5f20394 100644
--- a/drivers/mtd/nand/lpc32xx_slc.c
+++ b/drivers/mtd/nand/lpc32xx_slc.c
@@ -791,8 +791,8 @@ static int lpc32xx_nand_probe(struct platform_device *pdev)
}
if (host->ncfg->wp_gpio == -EPROBE_DEFER)
return -EPROBE_DEFER;
- if (gpio_is_valid(host->ncfg->wp_gpio) &&
- gpio_request(host->ncfg->wp_gpio, "NAND WP")) {
+ if (gpio_is_valid(host->ncfg->wp_gpio) && devm_gpio_request(&pdev->dev,
+ host->ncfg->wp_gpio, "NAND WP")) {
dev_err(&pdev->dev, "GPIO not available\n");
return -EBUSY;
}
@@ -808,7 +808,7 @@ static int lpc32xx_nand_probe(struct platform_device *pdev)
mtd->dev.parent = &pdev->dev;

/* Get NAND clock */
- host->clk = clk_get(&pdev->dev, NULL);
+ host->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(host->clk)) {
dev_err(&pdev->dev, "Clock failure\n");
res = -ENOENT;
@@ -927,10 +927,8 @@ err_exit3:
dma_release_channel(host->dma_chan);
err_exit2:
clk_disable(host->clk);
- clk_put(host->clk);
err_exit1:
lpc32xx_wp_enable(host);
- gpio_free(host->ncfg->wp_gpio);

return res;
}
@@ -953,9 +951,7 @@ static int lpc32xx_nand_remove(struct platform_device *pdev)
writel(tmp, SLC_CTRL(host->io_base));

clk_disable(host->clk);
- clk_put(host->clk);
lpc32xx_wp_enable(host);
- gpio_free(host->ncfg->wp_gpio);

return 0;
}
--
1.7.10.4