diff options
Diffstat (limited to 'sys/dev/filemon/filemon.c')
| -rw-r--r-- | sys/dev/filemon/filemon.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/sys/dev/filemon/filemon.c b/sys/dev/filemon/filemon.c index ed0ead5..cd40c5a 100644 --- a/sys/dev/filemon/filemon.c +++ b/sys/dev/filemon/filemon.c @@ -68,8 +68,6 @@ extern struct sysentvec elf64_freebsd_sysvec; static d_close_t filemon_close; static d_ioctl_t filemon_ioctl; static d_open_t filemon_open; -static int filemon_unload(void); -static void filemon_load(void *); static struct cdevsw filemon_cdevsw = { .d_version = D_VERSION, @@ -165,8 +163,10 @@ filemon_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int flag __unused, switch (cmd) { /* Set the output file descriptor. */ case FILEMON_SET_FD: - if (filemon->fp != NULL) - fdrop(filemon->fp, td); + if (filemon->fp != NULL) { + error = EEXIST; + break; + } error = fget_write(td, *(int *)data, cap_rights_init(&rights, CAP_PWRITE), @@ -301,6 +301,14 @@ filemon_modevent(module_t mod __unused, int type, void *data) error = filemon_unload(); break; + case MOD_QUIESCE: + /* + * The wrapper implementation is unsafe for reliable unload. + * Require forcing an unload. + */ + error = EBUSY; + break; + case MOD_SHUTDOWN: break; |
