gpio: pcie-idio-24: Fix irq mask when masking

Fix the bitwise operation to remove only the corresponding bit from the
mask.

Fixes: 585562046628 ("gpio: Add GPIO support for the ACCES PCIe-IDIO-24 family")
Cc: stable@vger.kernel.org
Signed-off-by: Arnaud de Turckheim <quarium@gmail.com>
Reviewed-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>

diff --git a/drivers/gpio/gpio-pcie-idio-24.c b/drivers/gpio/gpio-pcie-idio-24.c
index a68941d19ac60892e9b03185b98cdef552aa026b..5ea517416366063bffb0aa83c96f088fc353b3df 100644 (file)
--- a/drivers/gpio/gpio-pcie-idio-24.c
+++ b/drivers/gpio/gpio-pcie-idio-24.c
@@ -339,7 +339,7 @@ static void idio_24_irq_mask(struct irq_data *data)
 
        raw_spin_lock_irqsave(&idio24gpio->lock, flags);
 
-       idio24gpio->irq_mask &= BIT(bit_offset);
+       idio24gpio->irq_mask &= ~BIT(bit_offset);
        new_irq_mask = idio24gpio->irq_mask >> bank_offset;
 
        if (!new_irq_mask) {