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| author | John Ogness <john.ogness@linutronix.de> | 2018-06-25 00:08:41 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-06-28 19:36:06 +0900 |
| commit | 7375fc9f5f162e783661ee9cdb85a62ec5f6b6d5 (patch) | |
| tree | 714cee3a393adf37a83a6ec78fa7136454ca2207 /tools/perf/scripts/python | |
| parent | usb: usb-skeleton: use irqsave() in USB's complete callback (diff) | |
| download | linux-7375fc9f5f162e783661ee9cdb85a62ec5f6b6d5.tar.gz linux-7375fc9f5f162e783661ee9cdb85a62ec5f6b6d5.zip | |
usb: wusbcore: remove excessive irqsave
wa_urb_dequeue() locks multiple spinlocks while disabling interrupts:
spin_lock_irqsave(&lock1, flags);
spin_lock_irqsave(&lock2, flags2);
Obviously there is no need for the second irqsave and "flags2" variable
since interrupts are disabled at that point. Remove the second irqsave:
spin_lock_irqsave(&lock1, flags);
spin_lock(&lock2);
and eliminate the flags2 variable.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions