| Message ID | 0af951cacb921def80b5dfbc0ca82b39b1ecd1cc.1657149962.git.Thinh.Nguyen@synopsys.com |
|---|---|
| State | New |
| Headers | show |
| Series | usb: gadget: f_tcm: Enhance UASP driver | expand |
On Wed, Jul 06, 2022 at 04:34:42PM -0700, Thinh Nguyen wrote: > If the preempt_and_abort_list is NULL, don't attempt to drain it. > Otherwise, it may lead to invalid access. > > Signed-off-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com> > --- > drivers/target/target_core_tmr.c | 8 +++++--- > 1 file changed, 5 insertions(+), 3 deletions(-) > > diff --git a/drivers/target/target_core_tmr.c b/drivers/target/target_core_tmr.c > index bac111456fa1..7a7e24069ba7 100644 > --- a/drivers/target/target_core_tmr.c > +++ b/drivers/target/target_core_tmr.c > @@ -383,9 +383,11 @@ int core_tmr_lun_reset( > (preempt_and_abort_list) ? "Preempt" : "TMR", > dev->transport->name, tas); > > - core_tmr_drain_tmr_list(dev, tmr, preempt_and_abort_list); > - core_tmr_drain_state_list(dev, prout_cmd, tmr_sess, tas, > - preempt_and_abort_list); > + if (preempt_and_abort_list) { > + core_tmr_drain_tmr_list(dev, tmr, preempt_and_abort_list); > + core_tmr_drain_state_list(dev, prout_cmd, tmr_sess, tas, > + preempt_and_abort_list); > + } Those functions are not about to drain preempt_and_abort_list. And there are no invalid access inside. This patch breaks the tmf_abort functionality. NACK > > /* > * Clear any legacy SPC-2 reservation when called during
diff --git a/drivers/target/target_core_tmr.c b/drivers/target/target_core_tmr.c index bac111456fa1..7a7e24069ba7 100644 --- a/drivers/target/target_core_tmr.c +++ b/drivers/target/target_core_tmr.c @@ -383,9 +383,11 @@ int core_tmr_lun_reset( (preempt_and_abort_list) ? "Preempt" : "TMR", dev->transport->name, tas); - core_tmr_drain_tmr_list(dev, tmr, preempt_and_abort_list); - core_tmr_drain_state_list(dev, prout_cmd, tmr_sess, tas, - preempt_and_abort_list); + if (preempt_and_abort_list) { + core_tmr_drain_tmr_list(dev, tmr, preempt_and_abort_list); + core_tmr_drain_state_list(dev, prout_cmd, tmr_sess, tas, + preempt_and_abort_list); + } /* * Clear any legacy SPC-2 reservation when called during
If the preempt_and_abort_list is NULL, don't attempt to drain it. Otherwise, it may lead to invalid access. Signed-off-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com> --- drivers/target/target_core_tmr.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)