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MFC r271362:

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Make ctl_port_mask an array to support more then 32 ports.

Overflow reported by Coverity.

CID:		1229894

Approved by:	re (marius)
This commit is contained in:
mav 2014-09-13 17:08:27 +00:00
parent 953b084519
commit 85a1618ec2
2 changed files with 6 additions and 6 deletions
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8
sys/cam/ctl/ctl_frontend.c
View File

@ -147,9 +147,9 @@ ctl_port_register(struct ctl_port *port, int master_shelf)
KASSERT(control_softc != NULL, ("CTL is not initialized"));
mtx_lock(&control_softc->ctl_lock);
port_num = ctl_ffz(&control_softc->ctl_port_mask, CTL_MAX_PORTS);
port_num = ctl_ffz(control_softc->ctl_port_mask, CTL_MAX_PORTS);
if ((port_num == -1)
|| (ctl_set_mask(&control_softc->ctl_port_mask, port_num) == -1)) {
|| (ctl_set_mask(control_softc->ctl_port_mask, port_num) == -1)) {
port->targ_port = -1;
mtx_unlock(&control_softc->ctl_lock);
return (1);
@ -183,7 +183,7 @@ ctl_port_register(struct ctl_port *port, int master_shelf)
error:
port->targ_port = -1;
mtx_lock(&control_softc->ctl_lock);
ctl_clear_mask(&control_softc->ctl_port_mask, port_num);
ctl_clear_mask(control_softc->ctl_port_mask, port_num);
mtx_unlock(&control_softc->ctl_lock);
return (retval);
}
@ -223,7 +223,7 @@ ctl_port_deregister(struct ctl_port *port)
control_softc->num_ports--;
port_num = (port->targ_port < CTL_MAX_PORTS) ? port->targ_port :
port->targ_port - CTL_MAX_PORTS;
ctl_clear_mask(&control_softc->ctl_port_mask, port_num);
ctl_clear_mask(control_softc->ctl_port_mask, port_num);
control_softc->ctl_ports[port_num] = NULL;
mtx_unlock(&control_softc->ctl_lock);

4
sys/cam/ctl/ctl_private.h
View File

@ -441,9 +441,9 @@ struct ctl_softc {
struct ctl_io_pool *othersc_pool;
struct proc *ctl_proc;
int targ_online;
uint32_t ctl_lun_mask[CTL_MAX_LUNS >> 5];
uint32_t ctl_lun_mask[(CTL_MAX_LUNS + 31) / 32];
struct ctl_lun *ctl_luns[CTL_MAX_LUNS];
uint32_t ctl_port_mask;
uint32_t ctl_port_mask[(CTL_MAX_PORTS + 31) / 32];
uint64_t aps_locked_lun;
STAILQ_HEAD(, ctl_lun) lun_list;
STAILQ_HEAD(, ctl_be_lun) pending_lun_queue;