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Commit bfb623c5 authored by Sergio Paracuellos's avatar Sergio Paracuellos Committed by Greg Kroah-Hartman
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staging: mt7621-gpio: avoid check for NULL in 'to_mediatek_gpio' calls 



Function 'to_mediatek_gpio' cannot return NULL, so this NULL
checkings are pointless.

Signed-off-by: default avatarSergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 3e55d7c9

drivers/staging/mt7621-gpio/gpio-mt7621.c

+0 −9
Original line number Diff line number Diff line
@@ -115,9 +115,6 @@ mediatek_gpio_irq_unmask(struct irq_data *d) 
	unsigned long flags;

	u32 rise, fall, high, low;



	if (!rg)

		return;



	spin_lock_irqsave(&rg->lock, flags);

	rise = mtk_gpio_r32(rg, GPIO_REG_REDGE);

	fall = mtk_gpio_r32(rg, GPIO_REG_FEDGE);
@@ -139,9 +136,6 @@ mediatek_gpio_irq_mask(struct irq_data *d) 
	unsigned long flags;

	u32 rise, fall, high, low;



	if (!rg)

		return;



	spin_lock_irqsave(&rg->lock, flags);

	rise = mtk_gpio_r32(rg, GPIO_REG_REDGE);

	fall = mtk_gpio_r32(rg, GPIO_REG_FEDGE);
@@ -162,9 +156,6 @@ mediatek_gpio_irq_type(struct irq_data *d, unsigned int type) 
	int pin = d->hwirq;

	u32 mask = BIT(pin);



	if (!rg)

		return -1;



	if (type == IRQ_TYPE_PROBE) {

		if ((rg->rising | rg->falling |

		     rg->hlevel | rg->llevel) & mask)