# \[PATCH 1/2\] video: hpfb: use resource\_size()

- Subsystems: FRAMEBUFFER LAYER, THE REST
- Maintainers: Helge Deller, Linus Torvalds
- List: linux-fbdev
- 2 messages, 1 author
- Page: https://ratatoskr.run/linux-fbdev/2011/01/3671266/t

## \[PATCH 1/2\] video: hpfb: use resource\_size()

- From: Axel Lin \<hidden\>
- Date: 2011-01-29 09:33:56 
- Message: https://ratatoskr.run/linux-fbdev/2011/01/3671266.md

```text
The size calculation is done incorrectly here because it should include
both the start and end (end - start + 1).

Signed-off-by: Axel Lin <redacted>
---
 drivers/video/hpfb.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/video/hpfb.c b/drivers/video/hpfb.c
index c8e280f..ebf8495 100644
--- a/drivers/video/hpfb.c
+++ b/drivers/video/hpfb.c
@@ -321,11 +321,11 @@ static int __devinit hpfb_dio_probe(struct dio_dev * d, const struct dio_device_
 	unsigned long paddr, vaddr;
 
 	paddr = d->resource.start;
-	if (!request_mem_region(d->resource.start, d->resource.end - d->resource.start, d->name))
+	if (!request_mem_region(d->resource.start, resource_size(&d->resource), d->name))
                 return -EBUSY;
 
 	if (d->scode >= DIOII_SCBASE) {
-		vaddr = (unsigned long)ioremap(paddr, d->resource.end - d->resource.start);
+		vaddr = (unsigned long)ioremap(paddr, resource_size(&d->resource));
 	} else {
 		vaddr = paddr + DIO_VIRADDRBASE;
 	}
@@ -344,7 +344,7 @@ static void __devexit hpfb_remove_one(struct dio_dev *d)
 	unregister_framebuffer(&fb_info);
 	if (d->scode >= DIOII_SCBASE)
 		iounmap((void *)fb_regs);
-        release_mem_region(d->resource.start, d->resource.end - d->resource.start);
+	release_mem_region(d->resource.start, resource_size(&d->resource));
 }
 
 static struct dio_device_id hpfb_dio_tbl[] = {
-- 
1.7.0.4



```

## \[PATCH 2/2\] video: sh7760fb: use resource\_size()

- From: Axel Lin \<hidden\>
- Date: 2011-01-29 09:35:50 
- Message: https://ratatoskr.run/linux-fbdev/2011/01/3671267.md

```text
The size calculation is done incorrectly in request_mem_region because
it should include both the start and end (end - start + 1).

Signed-off-by: Axel Lin <redacted>
---
 drivers/video/sh7760fb.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/video/sh7760fb.c b/drivers/video/sh7760fb.c
index bea38fc..8fe1958 100644
--- a/drivers/video/sh7760fb.c
+++ b/drivers/video/sh7760fb.c
@@ -459,14 +459,14 @@ static int __devinit sh7760fb_probe(struct platform_device *pdev)
 	}
 
 	par->ioarea = request_mem_region(res->start,
-					 (res->end - res->start), pdev->name);
+					 resource_size(res), pdev->name);
 	if (!par->ioarea) {
 		dev_err(&pdev->dev, "mmio area busy\n");
 		ret = -EBUSY;
 		goto out_fb;
 	}
 
-	par->base = ioremap_nocache(res->start, res->end - res->start + 1);
+	par->base = ioremap_nocache(res->start, resource_size(res));
 	if (!par->base) {
 		dev_err(&pdev->dev, "cannot remap\n");
 		ret = -ENODEV;
-- 
1.7.0.4



```