diff options
Diffstat (limited to 'sys/fs/procfs/procfs_regs.c')
| -rw-r--r-- | sys/fs/procfs/procfs_regs.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/sys/fs/procfs/procfs_regs.c b/sys/fs/procfs/procfs_regs.c index 77cd84778319..3c0a700023b5 100644 --- a/sys/fs/procfs/procfs_regs.c +++ b/sys/fs/procfs/procfs_regs.c @@ -62,8 +62,11 @@ procfs_doprocregs(PFS_FILL_ARGS) char *kv; int kl; - if (p_candebug(td->td_proc, p)) + PROC_LOCK(p); + if (p_candebug(td->td_proc, p)) { + PROC_UNLOCK(p); return (EPERM); + } kl = sizeof(r); kv = (char *) &r; @@ -72,7 +75,8 @@ procfs_doprocregs(PFS_FILL_ARGS) if (kl > uio->uio_resid) kl = uio->uio_resid; - PHOLD(p); + _PHOLD(p); + PROC_UNLOCK(p); if (kl < 0) error = EINVAL; else @@ -80,6 +84,7 @@ procfs_doprocregs(PFS_FILL_ARGS) error = proc_read_regs(FIRST_THREAD_IN_PROC(p), &r); if (error == 0) error = uiomove(kv, kl, uio); + PROC_LOCK(p); if (error == 0 && uio->uio_rw == UIO_WRITE) { if (p->p_stat != SSTOP) error = EBUSY; @@ -87,7 +92,8 @@ procfs_doprocregs(PFS_FILL_ARGS) /* XXXKSE: */ error = proc_write_regs(FIRST_THREAD_IN_PROC(p), &r); } - PRELE(p); + _PRELE(p); + PROC_UNLOCK(p); uio->uio_offset = 0; return (error); |