diff options
| author | Ingo Molnar <mingo@kernel.org> | 2022-02-21 11:53:51 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2022-02-21 11:53:51 +0100 |
| commit | 6255b48aebfd4dff375e97fc8b075a235848db0b (patch) | |
| tree | bcedf2b959a843a18cf7ebcc9120a0dd1c4e234f /drivers/usb/core/urb.c | |
| parent | 1b2d3451ee50a0968cb9933f726e50b368ba5073 (diff) | |
| parent | cfb92440ee71adcc2105b0890bb01ac3cddb8507 (diff) | |
Merge tag 'v5.17-rc5' into sched/core, to resolve conflicts
New conflicts in sched/core due to the following upstream fixes:
44585f7bc0cb ("psi: fix "defined but not used" warnings when CONFIG_PROC_FS=n")
a06247c6804f ("psi: Fix uaf issue when psi trigger is destroyed while being polled")
Conflicts:
include/linux/psi_types.h
kernel/sched/psi.c
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/usb/core/urb.c')
| -rw-r--r-- | drivers/usb/core/urb.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c index 30727729a44c..33d62d7e3929 100644 --- a/drivers/usb/core/urb.c +++ b/drivers/usb/core/urb.c @@ -715,6 +715,12 @@ void usb_kill_urb(struct urb *urb) if (!(urb && urb->dev && urb->ep)) return; atomic_inc(&urb->reject); + /* + * Order the write of urb->reject above before the read + * of urb->use_count below. Pairs with the barriers in + * __usb_hcd_giveback_urb() and usb_hcd_submit_urb(). + */ + smp_mb__after_atomic(); usb_hcd_unlink_urb(urb, -ENOENT); wait_event(usb_kill_urb_queue, atomic_read(&urb->use_count) == 0); @@ -756,6 +762,12 @@ void usb_poison_urb(struct urb *urb) if (!urb) return; atomic_inc(&urb->reject); + /* + * Order the write of urb->reject above before the read + * of urb->use_count below. Pairs with the barriers in + * __usb_hcd_giveback_urb() and usb_hcd_submit_urb(). + */ + smp_mb__after_atomic(); if (!urb->dev || !urb->ep) return; |