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author | Olof Johansson <olof@lixom.net> | 2013-01-24 04:30:52 (GMT) |
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committer | Olof Johansson <olof@lixom.net> | 2013-01-24 04:30:52 (GMT) |
commit | f6be19c8bcca7185dcbda61f34f99d8b15bcd165 (patch) | |
tree | 28221937b24d1cbb372bb528f9f7368488c14470 /drivers/mmc | |
parent | 51edce0ccee090ea762a3014510e7870d25c49df (diff) | |
parent | 09d75bc7d217bd8868899028a98b53423e6b3324 (diff) | |
download | linux-f6be19c8bcca7185dcbda61f34f99d8b15bcd165.tar.xz |
Merge tag 'mvebu_fixes_for_v3.8-rc5' of git://git.infradead.org/users/jcooper/linux into fixes
From Jason Cooper:
mvebu fixes for v3.8-rc5
- fix memory leak in mvebu/clk-cpu.c
- use devm_ to correct/simplify error paths in mvsdio
- add missing #interrupt-cells property in kirkwood
* tag 'mvebu_fixes_for_v3.8-rc5' of git://git.infradead.org/users/jcooper/linux:
ARM: kirkwood: fix missing #interrupt-cells property
mmc: mvsdio: use devm_ API to simplify/correct error paths.
clk: mvebu/clk-cpu.c: fix memory leakage
Diffstat (limited to 'drivers/mmc')
-rw-r--r-- | drivers/mmc/host/mvsdio.c | 92 |
1 files changed, 30 insertions, 62 deletions
diff --git a/drivers/mmc/host/mvsdio.c b/drivers/mmc/host/mvsdio.c index de4c20b..f8dd361 100644 --- a/drivers/mmc/host/mvsdio.c +++ b/drivers/mmc/host/mvsdio.c @@ -50,8 +50,6 @@ struct mvsd_host { struct timer_list timer; struct mmc_host *mmc; struct device *dev; - struct resource *res; - int irq; struct clk *clk; int gpio_card_detect; int gpio_write_protect; @@ -718,10 +716,6 @@ static int __init mvsd_probe(struct platform_device *pdev) if (!r || irq < 0 || !mvsd_data) return -ENXIO; - r = request_mem_region(r->start, SZ_1K, DRIVER_NAME); - if (!r) - return -EBUSY; - mmc = mmc_alloc_host(sizeof(struct mvsd_host), &pdev->dev); if (!mmc) { ret = -ENOMEM; @@ -731,8 +725,8 @@ static int __init mvsd_probe(struct platform_device *pdev) host = mmc_priv(mmc); host->mmc = mmc; host->dev = &pdev->dev; - host->res = r; host->base_clock = mvsd_data->clock / 2; + host->clk = ERR_PTR(-EINVAL); mmc->ops = &mvsd_ops; @@ -752,7 +746,7 @@ static int __init mvsd_probe(struct platform_device *pdev) spin_lock_init(&host->lock); - host->base = ioremap(r->start, SZ_4K); + host->base = devm_request_and_ioremap(&pdev->dev, r); if (!host->base) { ret = -ENOMEM; goto out; @@ -765,44 +759,45 @@ static int __init mvsd_probe(struct platform_device *pdev) mvsd_power_down(host); - ret = request_irq(irq, mvsd_irq, 0, DRIVER_NAME, host); + ret = devm_request_irq(&pdev->dev, irq, mvsd_irq, 0, DRIVER_NAME, host); if (ret) { pr_err("%s: cannot assign irq %d\n", DRIVER_NAME, irq); goto out; - } else - host->irq = irq; + } /* Not all platforms can gate the clock, so it is not an error if the clock does not exists. */ - host->clk = clk_get(&pdev->dev, NULL); - if (!IS_ERR(host->clk)) { + host->clk = devm_clk_get(&pdev->dev, NULL); + if (!IS_ERR(host->clk)) clk_prepare_enable(host->clk); - } if (mvsd_data->gpio_card_detect) { - ret = gpio_request(mvsd_data->gpio_card_detect, - DRIVER_NAME " cd"); + ret = devm_gpio_request_one(&pdev->dev, + mvsd_data->gpio_card_detect, + GPIOF_IN, DRIVER_NAME " cd"); if (ret == 0) { - gpio_direction_input(mvsd_data->gpio_card_detect); irq = gpio_to_irq(mvsd_data->gpio_card_detect); - ret = request_irq(irq, mvsd_card_detect_irq, - IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING, - DRIVER_NAME " cd", host); + ret = devm_request_irq(&pdev->dev, irq, + mvsd_card_detect_irq, + IRQ_TYPE_EDGE_RISING | + IRQ_TYPE_EDGE_FALLING, + DRIVER_NAME " cd", host); if (ret == 0) host->gpio_card_detect = mvsd_data->gpio_card_detect; else - gpio_free(mvsd_data->gpio_card_detect); + devm_gpio_free(&pdev->dev, + mvsd_data->gpio_card_detect); } } if (!host->gpio_card_detect) mmc->caps |= MMC_CAP_NEEDS_POLL; if (mvsd_data->gpio_write_protect) { - ret = gpio_request(mvsd_data->gpio_write_protect, - DRIVER_NAME " wp"); + ret = devm_gpio_request_one(&pdev->dev, + mvsd_data->gpio_write_protect, + GPIOF_IN, DRIVER_NAME " wp"); if (ret == 0) { - gpio_direction_input(mvsd_data->gpio_write_protect); host->gpio_write_protect = mvsd_data->gpio_write_protect; } @@ -824,26 +819,11 @@ static int __init mvsd_probe(struct platform_device *pdev) return 0; out: - if (host) { - if (host->irq) - free_irq(host->irq, host); - if (host->gpio_card_detect) { - free_irq(gpio_to_irq(host->gpio_card_detect), host); - gpio_free(host->gpio_card_detect); - } - if (host->gpio_write_protect) - gpio_free(host->gpio_write_protect); - if (host->base) - iounmap(host->base); - } - if (r) - release_resource(r); - if (mmc) - if (!IS_ERR_OR_NULL(host->clk)) { + if (mmc) { + if (!IS_ERR(host->clk)) clk_disable_unprepare(host->clk); - clk_put(host->clk); - } mmc_free_host(mmc); + } return ret; } @@ -852,28 +832,16 @@ static int __exit mvsd_remove(struct platform_device *pdev) { struct mmc_host *mmc = platform_get_drvdata(pdev); - if (mmc) { - struct mvsd_host *host = mmc_priv(mmc); + struct mvsd_host *host = mmc_priv(mmc); - if (host->gpio_card_detect) { - free_irq(gpio_to_irq(host->gpio_card_detect), host); - gpio_free(host->gpio_card_detect); - } - mmc_remove_host(mmc); - free_irq(host->irq, host); - if (host->gpio_write_protect) - gpio_free(host->gpio_write_protect); - del_timer_sync(&host->timer); - mvsd_power_down(host); - iounmap(host->base); - release_resource(host->res); + mmc_remove_host(mmc); + del_timer_sync(&host->timer); + mvsd_power_down(host); + + if (!IS_ERR(host->clk)) + clk_disable_unprepare(host->clk); + mmc_free_host(mmc); - if (!IS_ERR(host->clk)) { - clk_disable_unprepare(host->clk); - clk_put(host->clk); - } - mmc_free_host(mmc); - } platform_set_drvdata(pdev, NULL); return 0; } |