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Do not initialize mutex and return error if it cannot map memory.

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This commit is contained in:
Jung-uk Kim 2010-05-01 00:36:40 +00:00
parent e1e9ba3370
commit 2083bca542
1 changed files with 13 additions and 13 deletions
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26
sys/compat/x86bios/x86bios.c
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@ -563,15 +563,15 @@ x86bios_unmap_mem(void)
contigfree(x86bios_seg, X86BIOS_SEG_SIZE, M_DEVBUF);
}
static void
x86bios_init(void *arg __unused)
static int
x86bios_init(void)
{
int i;
mtx_init(&x86bios_lock, "x86bios lock", NULL, MTX_SPIN);
if (x86bios_map_mem() != 0)
return;
return (ENOMEM);
mtx_init(&x86bios_lock, "x86bios lock", NULL, MTX_SPIN);
x86bios_map = malloc(sizeof(*x86bios_map) * X86BIOS_PAGES, M_DEVBUF,
M_WAITOK | M_ZERO);
@ -600,10 +600,12 @@ x86bios_init(void *arg __unused)
for (i = 0; i < 256; i++)
x86bios_emu._x86emu_intrTab[i] = x86bios_emu_get_intr;
return (0);
}
static void
x86bios_uninit(void *arg __unused)
static int
x86bios_uninit(void)
{
vm_offset_t *map = x86bios_map;
@ -618,6 +620,8 @@ x86bios_uninit(void *arg __unused)
x86bios_unmap_mem();
mtx_destroy(&x86bios_lock);
return (0);
}
static int
@ -626,16 +630,12 @@ x86bios_modevent(module_t mod __unused, int type, void *data __unused)
switch (type) {
case MOD_LOAD:
x86bios_init(NULL);
break;
return (x86bios_init());
case MOD_UNLOAD:
x86bios_uninit(NULL);
break;
return (x86bios_uninit());
default:
return (ENOTSUP);
}
return (0);
}
static moduledata_t x86bios_mod = {