From: Libin Yang <lby...@marvell.com>
This patch switchs to resource managed allocation and request in mmp-driver.
It can remove free resource operations.
Signed-off-by: Albert Wang <twan...@marvell.com>
Signed-off-by: Libin Yang <lby...@marvell.com>
---
drivers/media/platform/marvell-ccic/mmp-driver.c | 35 +++++++---------------
1 file changed, 10 insertions(+), 25 deletions(-)
diff --git a/drivers/media/platform/marvell-ccic/mmp-driver.c
b/drivers/media/platform/marvell-ccic/mmp-driver.c
index 20046d0..c3031e7 100755
--- a/drivers/media/platform/marvell-ccic/mmp-driver.c
+++ b/drivers/media/platform/marvell-ccic/mmp-driver.c
@@ -315,7 +315,7 @@ static int mmpcam_probe(struct platform_device *pdev)
pdata = pdev->dev.platform_data;
- cam = kzalloc(sizeof(*cam), GFP_KERNEL);
+ cam = devm_kzalloc(&pdev->dev, sizeof(*cam), GFP_KERNEL);
if (cam == NULL)
return -ENOMEM;
cam->pdev = pdev;
@@ -342,14 +342,12 @@ static int mmpcam_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (res == NULL) {
dev_err(&pdev->dev, "no iomem resource!\n");
- ret = -ENODEV;
- goto out_free;
+ return -ENODEV;
}
- mcam->regs = ioremap(res->start, resource_size(res));
+ mcam->regs = devm_request_and_ioremap(&pdev->dev, res);
if (mcam->regs == NULL) {
dev_err(&pdev->dev, "MMIO ioremap fail\n");
- ret = -ENODEV;
- goto out_free;
+ return -ENODEV;
}
/*
* Power/clock memory is elsewhere; get it too. Perhaps this
@@ -358,14 +356,12 @@ static int mmpcam_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
if (res == NULL) {
dev_err(&pdev->dev, "no power resource!\n");
- ret = -ENODEV;
- goto out_unmap1;
+ return -ENODEV;
}
- cam->power_regs = ioremap(res->start, resource_size(res));
+ cam->power_regs = devm_request_and_ioremap(&pdev->dev, res);
if (cam->power_regs == NULL) {
dev_err(&pdev->dev, "power MMIO ioremap fail\n");
- ret = -ENODEV;
- goto out_unmap1;
+ return -ENODEV;
}
mcam_init_clk(mcam, pdata, 1);
@@ -375,9 +371,8 @@ static int mmpcam_probe(struct platform_device *pdev)
*/
mcam->i2c_adapter = platform_get_drvdata(pdata->i2c_device);
if (mcam->i2c_adapter == NULL) {
- ret = -ENODEV;
dev_err(&pdev->dev, "No i2c adapter\n");
- goto out_unmap2;
+ return -ENODEV;
}
/*
* Sensor GPIO pins.
@@ -386,7 +381,7 @@ static int mmpcam_probe(struct platform_device *pdev)
if (ret) {
dev_err(&pdev->dev, "Can't get sensor power gpio %d",
pdata->sensor_power_gpio);
- goto out_unmap2;
+ return ret;
}
gpio_direction_output(pdata->sensor_power_gpio, 0);
ret = gpio_request(pdata->sensor_reset_gpio, "cam-reset");
@@ -414,7 +409,7 @@ static int mmpcam_probe(struct platform_device *pdev)
goto out_unregister;
}
cam->irq = res->start;
- ret = request_irq(cam->irq, mmpcam_irq, IRQF_SHARED,
+ ret = devm_request_irq(&pdev->dev, cam->irq, mmpcam_irq, IRQF_SHARED,
"mmp-camera", mcam);
if (ret == 0) {
mmpcam_add_device(cam);
@@ -428,13 +423,7 @@ out_gpio2:
gpio_free(pdata->sensor_reset_gpio);
out_gpio:
gpio_free(pdata->sensor_power_gpio);
-out_unmap2:
mcam_init_clk(mcam, pdata, 0);
- iounmap(cam->power_regs);
-out_unmap1:
- iounmap(mcam->regs);
-out_free:
- kfree(cam);
return ret;
}
@@ -445,16 +434,12 @@ static int mmpcam_remove(struct mmp_camera *cam)
struct mmp_camera_platform_data *pdata;
mmpcam_remove_device(cam);
- free_irq(cam->irq, mcam);
mccic_shutdown(mcam);
mmpcam_power_down(mcam);
pdata = cam->pdev->dev.platform_data;
gpio_free(pdata->sensor_reset_gpio);
gpio_free(pdata->sensor_power_gpio);
- iounmap(cam->power_regs);
- iounmap(mcam->regs);
mcam_init_clk(mcam, pdata, 0);
- kfree(cam);
return 0;
}
--
1.7.9.5
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