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| author | Robert Noland <rnoland@FreeBSD.org> | 2009-03-20 18:30:20 +0000 |
|---|---|---|
| committer | Robert Noland <rnoland@FreeBSD.org> | 2009-03-20 18:30:20 +0000 |
| commit | 45d0290a5d9eb0762e5494a0ce7002427d167ff4 (patch) | |
| tree | 0de2adce2fd530a8d132c3e844d042e636dfafa9 /sys/dev/agp/agp_i810.c | |
| parent | 1a604cfa07381c3cdf2c3d89ab2e25244845722c (diff) | |
| download | src-45d0290a5d9eb0762e5494a0ce7002427d167ff4.tar.gz src-45d0290a5d9eb0762e5494a0ce7002427d167ff4.zip | |
vm_offset_t is unsigned and therefore can not be negative.
Avoid unnessecary compares.
Found with: Coverity Prevent(tm)
CID: 2362,4215,4214,4209,4208,2363,4211,4210,4213,4212
MFC after: 3 days
Notes
Notes:
svn path=/head/; revision=190169
Diffstat (limited to 'sys/dev/agp/agp_i810.c')
| -rw-r--r-- | sys/dev/agp/agp_i810.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/sys/dev/agp/agp_i810.c b/sys/dev/agp/agp_i810.c index 48cf17124c51..891bfff89da1 100644 --- a/sys/dev/agp/agp_i810.c +++ b/sys/dev/agp/agp_i810.c @@ -840,7 +840,7 @@ agp_i810_bind_page(device_t dev, vm_offset_t offset, vm_offset_t physical) { struct agp_i810_softc *sc = device_get_softc(dev); - if (offset < 0 || offset >= (sc->gatt->ag_entries << AGP_PAGE_SHIFT)) { + if (offset >= (sc->gatt->ag_entries << AGP_PAGE_SHIFT)) { device_printf(dev, "failed: offset is 0x%08jx, shift is %d, entries is %d\n", (intmax_t)offset, AGP_PAGE_SHIFT, sc->gatt->ag_entries); return EINVAL; } @@ -862,7 +862,7 @@ agp_i810_unbind_page(device_t dev, vm_offset_t offset) { struct agp_i810_softc *sc = device_get_softc(dev); - if (offset < 0 || offset >= (sc->gatt->ag_entries << AGP_PAGE_SHIFT)) + if (offset >= (sc->gatt->ag_entries << AGP_PAGE_SHIFT)) return EINVAL; if ( sc->chiptype != CHIP_I810 ) { @@ -1016,7 +1016,7 @@ agp_i810_bind_memory(device_t dev, struct agp_memory *mem, vm_offset_t i; /* Do some sanity checks first. */ - if (offset < 0 || (offset & (AGP_PAGE_SIZE - 1)) != 0 || + if ((offset & (AGP_PAGE_SIZE - 1)) != 0 || offset + mem->am_size > AGP_GET_APERTURE(dev)) { device_printf(dev, "binding memory at bad offset %#x\n", (int)offset); |