diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/compat/x86bios/x86bios.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sys/compat/x86bios/x86bios.c b/sys/compat/x86bios/x86bios.c index cda03a0832b3..2662fad578d6 100644 --- a/sys/compat/x86bios/x86bios.c +++ b/sys/compat/x86bios/x86bios.c @@ -121,7 +121,7 @@ x86bios_alloc(uint32_t *offset, size_t size, int flags) *offset = vtophys(addr); mtx_lock(&x86bios_lock); for (i = 0; i < howmany(size, PAGE_SIZE); i++) - vm86_addpage(&x86bios_vmc, atop(*offset), + vm86_addpage(&x86bios_vmc, atop(*offset) + i, addr + i * PAGE_SIZE); mtx_unlock(&x86bios_lock); } @@ -142,6 +142,10 @@ x86bios_free(void *addr, size_t size) sizeof(x86bios_vmc.pmap[i])); last = i; } + if (last < 0) { + mtx_unlock(&x86bios_lock); + return; + } if (last == x86bios_vmc.npages - 1) { x86bios_vmc.npages -= howmany(size, PAGE_SIZE); for (i = x86bios_vmc.npages - 1; |