diff options
Diffstat (limited to 'drivers/spi/spidev.c')
| -rw-r--r-- | drivers/spi/spidev.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/drivers/spi/spidev.c b/drivers/spi/spidev.c index d13dc15cc191..dc516f0ca71f 100644 --- a/drivers/spi/spidev.c +++ b/drivers/spi/spidev.c @@ -357,6 +357,7 @@ spidev_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) int retval = 0; struct spidev_data *spidev; struct spi_device *spi; + struct spi_controller *ctlr; u32 tmp; unsigned n_ioc; struct spi_ioc_transfer *ioc; @@ -376,6 +377,8 @@ spidev_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) return -ESHUTDOWN; } + ctlr = spi->controller; + /* use the buffer lock here for triple duty: * - prevent I/O (from us) so calling spi_setup() is safe; * - prevent concurrent SPI_IOC_WR_* from morphing @@ -390,13 +393,9 @@ spidev_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) case SPI_IOC_RD_MODE32: tmp = spi->mode; - { - struct spi_controller *ctlr = spi->controller; - - if (ctlr->use_gpio_descriptors && ctlr->cs_gpiods && - ctlr->cs_gpiods[spi_get_chipselect(spi, 0)]) - tmp &= ~SPI_CS_HIGH; - } + if (ctlr->use_gpio_descriptors && ctlr->cs_gpiods && + ctlr->cs_gpiods[spi_get_chipselect(spi, 0)]) + tmp &= ~SPI_CS_HIGH; if (cmd == SPI_IOC_RD_MODE) retval = put_user(tmp & SPI_MODE_MASK, @@ -424,7 +423,6 @@ spidev_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) else retval = get_user(tmp, (u32 __user *)arg); if (retval == 0) { - struct spi_controller *ctlr = spi->controller; u32 save = spi->mode; if (tmp & ~SPI_MODE_MASK) { |