Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
Input: mxs-lradc-ts - use guard notation when acquiring spinlock
Guard notation simplifies code and shows critical section more clearly.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
+3
-4
+3
-4
drivers/input/touchscreen/mxs-lradc-ts.c
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-4
drivers/input/touchscreen/mxs-lradc-ts.c
···
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LRADC_CTRL1_TOUCH_DETECT_IRQ |
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LRADC_CTRL1_LRADC_IRQ(TOUCHSCREEN_VCHANNEL1) |
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LRADC_CTRL1_LRADC_IRQ(TOUCHSCREEN_VCHANNEL2);
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-
unsigned long flags;
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if (!(reg & mxs_lradc_irq_mask(lradc)))
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return IRQ_NONE;
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if (reg & ts_irq_mask) {
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spin_lock_irqsave(&ts->lock, flags);
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mxs_lradc_handle_touch(ts);
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-
spin_unlock_irqrestore(&ts->lock, flags);
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+
scoped_guard(spinlock_irqsave, &ts->lock) {
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mxs_lradc_handle_touch(ts);
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+
}
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/* Make sure we don't clear the next conversion's interrupt. */
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clr_irq &= ~(LRADC_CTRL1_LRADC_IRQ(TOUCHSCREEN_VCHANNEL1) |
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LRADC_CTRL1_LRADC_IRQ(TOUCHSCREEN_VCHANNEL2));