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| author | Ben Dooks <ben@simtec.co.uk> | 2009-12-15 16:46:33 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-16 07:20:02 -0800 |
| commit | d60f6c2ba86243a3bbc0c70508f71f84c5308f8e (patch) | |
| tree | 9e700002d87305fe96c80d7caafa9dd4bf46cdcb /drivers/video/sm501fb.c | |
| parent | b689a9e8362ed909045f99517b735c7c60835f7c (diff) | |
| download | linux-d60f6c2ba86243a3bbc0c70508f71f84c5308f8e.tar.gz linux-d60f6c2ba86243a3bbc0c70508f71f84c5308f8e.tar.bz2 linux-d60f6c2ba86243a3bbc0c70508f71f84c5308f8e.zip | |
sm501: fix missing uses of resource_size()
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@simtec.co.uk>
Signed-off-by: Simtec Linux Team <linux@simtec.co.uk>
Cc: Vincent Sanders <vince@simtec.co.uk>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/video/sm501fb.c')
| -rw-r--r-- | drivers/video/sm501fb.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/video/sm501fb.c b/drivers/video/sm501fb.c index 924d79462780..95be9e90e8b8 100644 --- a/drivers/video/sm501fb.c +++ b/drivers/video/sm501fb.c @@ -1338,7 +1338,7 @@ static int sm501fb_start(struct sm501fb_info *info, } 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_info *info, 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 *info, } 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_info *info, 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); |