The patch titled
sm501: fix missing uses of resource_size()
has been added to the -mm tree. Its filename is
sm501-fix-missing-uses-of-resource_size.patch
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------------------------------------------------------
Subject: sm501: fix missing uses of resource_size()
From: Ben Dooks <ben@xxxxxxxxxxxx>
There are several places in the SM501 fb driver that could do with using
resource_size() to calculate the size of a resource.
Also fix a bug where request_mem_region() is being passed one too few
bytes when requesting the register memory region, which was causing the
following in /proc/iomem:
13e80000-13e8ffff : sm501-fb.0
13e80000-13e8fffe : sm501-fb
fixed, this reads:
13e80000-13e8ffff : sm501-fb.0
13e80000-13e8ffff : sm501-fb
Signed-off-by: Ben Dooks <ben@xxxxxxxxxxxx>
Signed-off-by: Simtec Linux Team <linux@xxxxxxxxxxxx>
Cc: Vincent Sanders <vince@xxxxxxxxxxxx>
Cc: Krzysztof Helt <krzysztof.h1@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/video/sm501fb.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff -puN drivers/video/sm501fb.c~sm501-fix-missing-uses-of-resource_size drivers/video/sm501fb.c
--- a/drivers/video/sm501fb.c~sm501-fix-missing-uses-of-resource_size
+++ a/drivers/video/sm501fb.c
@@ -1338,7 +1338,7 @@ static int sm501fb_start(struct sm501fb_
}
info->regs_res = request_mem_region(res->start,
- res->end - res->start,
+ resource_size(res),
pdev->name);
if (info->regs_res == NULL) {
@@ -1347,7 +1347,7 @@ static int sm501fb_start(struct sm501fb_
goto err_release;
}
- info->regs = ioremap(res->start, (res->end - res->start)+1);
+ info->regs = ioremap(res->start, resource_size(res));
if (info->regs == NULL) {
dev_err(dev, "cannot remap registers\n");
ret = -ENXIO;
@@ -1363,7 +1363,7 @@ static int sm501fb_start(struct sm501fb_
}
info->fbmem_res = request_mem_region(res->start,
- (res->end - res->start)+1,
+ resource_size(res),
pdev->name);
if (info->fbmem_res == NULL) {
dev_err(dev, "cannot claim framebuffer\n");
@@ -1371,13 +1371,13 @@ static int sm501fb_start(struct sm501fb_
goto err_regs_map;
}
- info->fbmem = ioremap(res->start, (res->end - res->start)+1);
+ info->fbmem = ioremap(res->start, resource_size(res));
if (info->fbmem == NULL) {
dev_err(dev, "cannot remap framebuffer\n");
goto err_mem_res;
}
- info->fbmem_len = (res->end - res->start)+1;
+ info->fbmem_len = resource_size(res);
/* clear framebuffer memory - avoids garbage data on unused fb */
memset(info->fbmem, 0, info->fbmem_len);
_
Patches currently in -mm which might be from ben@xxxxxxxxxxxx are
linux-next.patch
s3cmci-convert-missed-s3c2410_gpio-calls-to-gpiolib-calls.patch
spi_s3c24xx-add-fiq-pseudo-dma-support.patch
gpiolib-add-names-file-in-gpio-chip-sysfs.patch
sm501-fix-missing-uses-of-resource_size.patch
sm501-fix-use-of-old-asm-ioh-instead-of-linux-ioh.patch
sm501-implement-acceleration-features.patch
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