[PATCH 01/50] USB: devio: spin_lock in complete() cleanup
From: Ming Lei <hidden>
Date: 2013-07-11 09:06:44
Also in:
alsa-devel, linux-input, linux-media, linux-wireless
Subsystem:
the rest, usb subsystem · Maintainers:
Linus Torvalds, Greg Kroah-Hartman
Complete() will be run with interrupt enabled, so change to spin_lock_irqsave(). Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Ming Lei <redacted> --- drivers/usb/core/devio.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 0598650..21e6ec6 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c@@ -495,8 +495,9 @@ static void async_completed(struct urb *urb) u32 secid = 0; const struct cred *cred = NULL; int signr; + unsigned long flags; - spin_lock(&ps->lock); + spin_lock_irqsave(&ps->lock, flags); list_move_tail(&as->asynclist, &ps->async_completed); as->status = urb->status; signr = as->signr;
@@ -518,7 +519,7 @@ static void async_completed(struct urb *urb) if (as->status < 0 && as->bulk_addr && as->status != -ECONNRESET && as->status != -ENOENT) cancel_bulk_urbs(ps, as->bulk_addr); - spin_unlock(&ps->lock); + spin_unlock_irqrestore(&ps->lock, flags); if (signr) { kill_pid_info_as_cred(sinfo.si_signo, &sinfo, pid, cred, secid);
--
1.7.9.5