tree 22b6a4a3623ba2eae08113367eab8b59929f43c0
parent fe4b334f8bcdf5359771666d5002b293212e4d3f
author Lennert Buytenhek <[EMAIL PROTECTED]> Sun, 17 Apr 2005 05:25:58 -0700
committer Linus Torvalds <[EMAIL PROTECTED]> Sun, 17 Apr 2005 05:25:58 -0700
[PATCH] pci enumeration on ixp2000: overflow in kernel/resource.c
IXP2000 (ARM-based) platforms use a separate 'struct resource' for PCI MEM
space. Resource allocation for PCI BARs always fails because the 'root'
resource (the IXP2000 PCI MEM resource) always has the entire address space
(00000000-ffffffff) free, and find_resource() calculates the size of that
range as ffffffff-00000000+1=0, so all allocations fail because it thinks
there is no space.
(akpm: pls. double-check)
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
resource.c | 2 +-
1 files changed, 1 insertion(+), 1 deletion(-)
Index: kernel/resource.c
===================================================================
--- f465d074c61e4353a4692935ab330652607807e4/kernel/resource.c (mode:100644
sha1:35c99ac02c7cf1408e03cfa4198a0a6786b3ac58)
+++ 22b6a4a3623ba2eae08113367eab8b59929f43c0/kernel/resource.c (mode:100644
sha1:52f696f11adfe68bbe5785e997f290071e8d6cf1)
@@ -266,7 +266,7 @@
new->start = (new->start + align - 1) & ~(align - 1);
if (alignf)
alignf(alignf_data, new, size, align);
- if (new->start < new->end && new->end - new->start + 1 >= size)
{
+ if (new->start < new->end && new->end - new->start >= size - 1)
{
new->end = new->start + size - 1;
return 0;
}
-
To unsubscribe from this list: send the line "unsubscribe bk-commits-head" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
