diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2020-10-19 13:06:42 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-10-28 14:31:39 +0300 |
| commit | 726c8277bc5e67799f2ac3ca7fc795d4bf07264f (patch) | |
| tree | 6e16864c8a2fdac27774092ab2b0b231a5e4a196 | |
| parent | 862ee699fefe1e6d6f2c1518395f0b999b8beb15 (diff) | |
| download | linux-726c8277bc5e67799f2ac3ca7fc795d4bf07264f.tar.xz | |
usb: atm: Replace in_interrupt() usage in comment
in_interrupt() is a pretty vague context description as it means: hard
interrupt, soft interrupt or bottom half disabled regions.
Replace the vague comment with a proper reasoning why spin_lock_irqsave()
needs to be used.
Signed-off-by: Ahmed S. Darwish <a.darwish@linutronix.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Duncan Sands <duncan.sands@free.fr>
Cc: linux-usb@vger.kernel.org
Link: https://lore.kernel.org/r/20201019101110.944939915@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/atm/usbatm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/atm/usbatm.c b/drivers/usb/atm/usbatm.c index 56fe30d247da..f49792f951ab 100644 --- a/drivers/usb/atm/usbatm.c +++ b/drivers/usb/atm/usbatm.c @@ -249,7 +249,7 @@ static void usbatm_complete(struct urb *urb) /* vdbg("%s: urb 0x%p, status %d, actual_length %d", __func__, urb, status, urb->actual_length); */ - /* usually in_interrupt(), but not always */ + /* Can be invoked from task context, protect against interrupts */ spin_lock_irqsave(&channel->lock, flags); /* must add to the back when receiving; doesn't matter when sending */ |