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[media] media: davinci: vpbe_display: convert to devm* api 

Replace existing resource handling in the driver with managed
device resource, this ensures more consistent error values and
simplifies error paths.

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Lad, Prabhakar 2013-07-13 04:50:29 -03:00 committed by Mauro Carvalho Chehab
parent 418f7d60c0
commit 6b55b4516c
1 changed files with 7 additions and 16 deletions
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23
drivers/media/platform/davinci/vpbe_display.c
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@ -1743,11 +1743,10 @@ static int vpbe_display_probe(struct platform_device *pdev)
printk(KERN_DEBUG "vpbe_display_probe\n");
/* Allocate memory for vpbe_display */
disp_dev = kzalloc(sizeof(struct vpbe_display), GFP_KERNEL);
if (!disp_dev) {
printk(KERN_ERR "ran out of memory\n");
disp_dev = devm_kzalloc(&pdev->dev, sizeof(struct vpbe_display),
GFP_KERNEL);
if (!disp_dev)
return -ENOMEM;
}
spin_lock_init(&disp_dev->dma_queue_lock);
/*
@ -1786,26 +1785,24 @@ static int vpbe_display_probe(struct platform_device *pdev)
}
irq = res->start;
if (request_irq(irq, venc_isr, IRQF_DISABLED, VPBE_DISPLAY_DRIVER,
disp_dev)) {
err = devm_request_irq(&pdev->dev, irq, venc_isr, IRQF_DISABLED,
VPBE_DISPLAY_DRIVER, disp_dev);
if (err) {
v4l2_err(&disp_dev->vpbe_dev->v4l2_dev,
"Unable to request interrupt\n");
err = -ENODEV;
goto probe_out;
}
for (i = 0; i < VPBE_DISPLAY_MAX_DEVICES; i++) {
if (register_device(disp_dev->dev[i], disp_dev, pdev)) {
err = -ENODEV;
goto probe_out_irq;
goto probe_out;
}
}
printk(KERN_DEBUG "Successfully completed the probing of vpbe v4l2 device\n");
return 0;
probe_out_irq:
free_irq(res->start, disp_dev);
probe_out:
for (k = 0; k < VPBE_DISPLAY_MAX_DEVICES; k++) {
/* Get the pointer to the layer object */
@ -1817,7 +1814,6 @@ probe_out:
kfree(disp_dev->dev[k]);
}
}
kfree(disp_dev);
return err;
}
@ -1830,15 +1826,10 @@ static int vpbe_display_remove(struct platform_device *pdev)
struct vpbe_layer *vpbe_display_layer;
struct vpbe_display *disp_dev = platform_get_drvdata(pdev);
struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev;
struct resource *res;
int i;
v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "vpbe_display_remove\n");
/* unregister irq */
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
free_irq(res->start, disp_dev);
/* deinitialize the vpbe display controller */
if (NULL != vpbe_dev->ops.deinitialize)
vpbe_dev->ops.deinitialize(&pdev->dev, vpbe_dev);