Wire the sysctl output buffer before grabbing any locks to prevent

SYSCTL_OUT() from blocking while locks are held.  This should
only be done when it would be inconvenient to make a temporary copy of
the data and defer calling SYSCTL_OUT() until after the locks are
released.

1 files changed, 1 insertions, 0 deletions

diff --git a/sys/netsmb/smb_conn.c b/sys/netsmb/smb_conn.c
index 657c469..9c52571 100644
--- a/sys/netsmb/smb_conn.c
+++ b/sys/netsmb/smb_conn.c
@@ -834,6 +834,7 @@ smb_sysctl_treedump(SYSCTL_HANDLER_ARGS)
 	int error, itype;
 
 	smb_makescred(&scred, td, td->td_ucred);
+	sysctl_wire_old_buffer(req, 0);
 	error = smb_sm_lockvclist(LK_SHARED, td);
 	if (error)
 		return error;