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staging: mt7621-gpio: avoid check for NULL in 'to_mediatek_gpio' calls

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

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sergio Paracuellos 2018-06-18 11:36:14 +02:00 committed by Greg Kroah-Hartman
parent 3e55d7c913
commit bfb623c5b0
1 changed files with 0 additions and 9 deletions
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9
drivers/staging/mt7621-gpio/gpio-mt7621.c
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@ -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)