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Open fwmem device exclusively.

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This commit is contained in:
Hidetoshi Shimokawa 2003-06-03 22:52:55 +00:00
parent 03d26d7e42
commit 1bba1572a0
1 changed files with 5 additions and 0 deletions
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5
sys/dev/firewire/fwmem.c
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@ -241,6 +241,9 @@ fwmem_open (dev_t dev, int flags, int fmt, fw_proc *td)
{
struct fw_eui64 *eui;
if (dev->si_drv1 != NULL)
return (EBUSY);
eui = (struct fw_eui64 *)malloc(sizeof(struct fw_eui64),
M_FW, M_WAITOK);
if (eui == NULL)
@ -255,6 +258,8 @@ int
fwmem_close (dev_t dev, int flags, int fmt, fw_proc *td)
{
free(dev->si_drv1, M_FW);
dev->si_drv1 = NULL;
return (0);
}