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| author | Ben Collins <bcollins@ubuntu.com> | 2006-06-12 18:15:31 -0400 |
|---|---|---|
| committer | Ben Collins <bcollins@ubuntu.com> | 2006-06-12 18:15:31 -0400 |
| commit | 6737231ead125c7cee7ce4d3a74179bdac085529 (patch) | |
| tree | f0c996c8c48d07398c47ada5a2dacdcbf0800770 /drivers/ieee1394/highlevel.c | |
| parent | e269d276792684a13ab0d9acd8c024ec7d6c5f4d (diff) | |
| download | linux-6737231ead125c7cee7ce4d3a74179bdac085529.tar.gz linux-6737231ead125c7cee7ce4d3a74179bdac085529.tar.bz2 linux-6737231ead125c7cee7ce4d3a74179bdac085529.zip | |
ieee1394: add preprocessor constant for invalid csr address
Replace occurrences of the magic value ~(u64)0 for invalid
CSR address spaces by a named constant for better readability.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Ben Collins <bcollins@ubuntu.com>
Diffstat (limited to 'drivers/ieee1394/highlevel.c')
| -rw-r--r-- | drivers/ieee1394/highlevel.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/ieee1394/highlevel.c b/drivers/ieee1394/highlevel.c index 29c5255b933c..165dcd669560 100644 --- a/drivers/ieee1394/highlevel.c +++ b/drivers/ieee1394/highlevel.c @@ -301,7 +301,7 @@ u64 hpsb_allocate_and_register_addrspace(struct hpsb_highlevel *hl, { struct hpsb_address_serve *as, *a1, *a2; struct list_head *entry; - u64 retval = ~0ULL; + u64 retval = CSR1212_INVALID_ADDR_SPACE; unsigned long flags; u64 align_mask = ~(alignment - 1); @@ -314,9 +314,10 @@ u64 hpsb_allocate_and_register_addrspace(struct hpsb_highlevel *hl, /* default range, * avoids controller's posted write area (see OHCI 1.1 clause 1.5) */ - if (start == ~0ULL && end == ~0ULL) { + if (start == CSR1212_INVALID_ADDR_SPACE && + end == CSR1212_INVALID_ADDR_SPACE) { start = host->middle_addr_space; - end = CSR1212_ALL_SPACE_END; + end = CSR1212_ALL_SPACE_END; } if (((start|end) & ~align_mask) || (start >= end) || (end > 0x1000000000000ULL)) { @@ -360,7 +361,7 @@ u64 hpsb_allocate_and_register_addrspace(struct hpsb_highlevel *hl, write_unlock_irqrestore(&addr_space_lock, flags); - if (retval == ~0ULL) { + if (retval == CSR1212_INVALID_ADDR_SPACE) { kfree(as); } |