From: Lad, Prabhakar <prabhakar.cse...@gmail.com>
use devm_request_irq() instead of request_irq(). This ensures
more consistent error values and simplifies error paths.
Signed-off-by: Lad, Prabhakar <prabhakar.cse...@gmail.com>
---
drivers/media/platform/davinci/vpif_display.c | 35 ++++++------------------
1 files changed, 9 insertions(+), 26 deletions(-)
diff --git a/drivers/media/platform/davinci/vpif_display.c
b/drivers/media/platform/davinci/vpif_display.c
index 7bcfe7d..e2f080b 100644
--- a/drivers/media/platform/davinci/vpif_display.c
+++ b/drivers/media/platform/davinci/vpif_display.c
@@ -1718,15 +1718,14 @@ static __init int vpif_probe(struct platform_device
*pdev)
while ((res = platform_get_resource(pdev, IORESOURCE_IRQ, res_idx))) {
for (i = res->start; i <= res->end; i++) {
- if (request_irq(i, vpif_channel_isr, IRQF_SHARED,
- "VPIF_Display", (void *)
- (&vpif_obj.dev[res_idx]->channel_id))) {
- err = -EBUSY;
- for (j = 0; j < i; j++)
- free_irq(j, (void *)
- (&vpif_obj.dev[res_idx]->channel_id));
+ err = devm_request_irq(&pdev->dev, i, vpif_channel_isr,
+ IRQF_SHARED, "VPIF_Display",
+ (void *)(&vpif_obj.dev[res_idx]->
+ channel_id));
+ if (err) {
+ err = -EINVAL;
vpif_err("VPIF IRQ request failed\n");
- goto vpif_int_err;
+ goto vpif_unregister;
}
}
res_idx++;
@@ -1744,7 +1743,7 @@ static __init int vpif_probe(struct platform_device *pdev)
video_device_release(ch->video_dev);
}
err = -ENOMEM;
- goto vpif_int_err;
+ goto vpif_unregister;
}
/* Initialize field of video device */
@@ -1878,13 +1877,8 @@ vpif_sd_error:
/* Note: does nothing if ch->video_dev == NULL */
video_device_release(ch->video_dev);
}
-vpif_int_err:
+vpif_unregister:
v4l2_device_unregister(&vpif_obj.v4l2_dev);
- for (i = 0; i < res_idx; i++) {
- res = platform_get_resource(pdev, IORESOURCE_IRQ, i);
- for (j = res->start; j <= res->end; j++)
- free_irq(j, (void *)(&vpif_obj.dev[i]->channel_id));
- }
return err;
}
@@ -1894,20 +1888,9 @@ vpif_int_err:
*/
static int vpif_remove(struct platform_device *device)
{
- struct platform_device *pdev;
struct channel_obj *ch;
- struct resource *res;
- int irq_num;
int i = 0;
- pdev = container_of(vpif_dev, struct platform_device, dev);
- while ((res = platform_get_resource(pdev, IORESOURCE_IRQ, i))) {
- for (irq_num = res->start; irq_num <= res->end; irq_num++)
- free_irq(irq_num,
- (void *)(&vpif_obj.dev[i]->channel_id));
- i++;
- }
-
v4l2_device_unregister(&vpif_obj.v4l2_dev);
kfree(vpif_obj.sd);
--
1.7.0.4
--
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