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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
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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
This commit is contained in:
Olof Johansson 2013-01-23 20:30:52 -08:00
parent 51edce0cce 09d75bc7d2
commit f6be19c8bc
3 changed files with 38 additions and 65 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm/boot/dts/kirkwood.dtsi
View File

@ -36,6 +36,7 @@
reg = <0x10100 0x40>;
ngpios = <32>;
interrupt-controller;
#interrupt-cells = <2>;
interrupts = <35>, <36>, <37>, <38>;
};
@ -46,6 +47,7 @@
reg = <0x10140 0x40>;
ngpios = <18>;
interrupt-controller;
#interrupt-cells = <2>;
interrupts = <39>, <40>, <41>;
};

9
drivers/clk/mvebu/clk-cpu.c
View File

@ -124,7 +124,7 @@ void __init of_cpu_clk_setup(struct device_node *node)
clks = kzalloc(ncpus * sizeof(*clks), GFP_KERNEL);
if (WARN_ON(!clks))
return;
goto clks_out;
for_each_node_by_type(dn, "cpu") {
struct clk_init_data init;
@ -134,11 +134,11 @@ void __init of_cpu_clk_setup(struct device_node *node)
int cpu, err;
if (WARN_ON(!clk_name))
return;
goto bail_out;
err = of_property_read_u32(dn, "reg", &cpu);
if (WARN_ON(err))
return;
goto bail_out;
sprintf(clk_name, "cpu%d", cpu);
parent_clk = of_clk_get(node, 0);
@ -167,6 +167,9 @@ void __init of_cpu_clk_setup(struct device_node *node)
return;
bail_out:
kfree(clks);
while(ncpus--)
kfree(cpuclk[ncpus].clk_name);
clks_out:
kfree(cpuclk);
}

92
drivers/mmc/host/mvsdio.c
View File

@ -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;
}