| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.4 128/151] gpio: pcie-idio-24: Fix irq mask when masking | Date | Tue, 17 Nov 2020 14:05:58 +0100 |
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From: Arnaud de Turckheim <quarium@gmail.com>
commit d8f270efeac850c569c305dc0baa42ac3d607988 upstream.
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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/gpio/gpio-pcie-idio-24.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpio/gpio-pcie-idio-24.c +++ b/drivers/gpio/gpio-pcie-idio-24.c @@ -365,7 +365,7 @@ static void idio_24_irq_mask(struct irq_ 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) {
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