From dd06a0c6b6f64f6610c0bb8f7651df3ebfb0f990 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Mon, 22 Nov 2021 19:52:45 +0200 Subject: spi: spidev: Use SPI_MODE_USER_MASK instead of casting Currently the 16-bit mode is what being used in user space. However assuming that is not fully correct. Instead we should use the respective mask, i.e. SPI_MODE_USER_MASK, which precisely defines what bits are available for user space apps. Signed-off-by: Andy Shevchenko Link: https://lore.kernel.org/r/20211122175245.84691-1-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown --- drivers/spi/spidev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/spi') diff --git a/drivers/spi/spidev.c b/drivers/spi/spidev.c index 1bd73e322b7b..968dab2f5e3d 100644 --- a/drivers/spi/spidev.c +++ b/drivers/spi/spidev.c @@ -415,7 +415,7 @@ spidev_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) tmp |= SPI_CS_HIGH; tmp |= spi->mode & ~SPI_MODE_MASK; - spi->mode = (u16)tmp; + spi->mode = tmp & SPI_MODE_USER_MASK; retval = spi_setup(spi); if (retval < 0) spi->mode = save; -- cgit v1.2.3