diff options
| -rw-r--r-- | drivers/spi/sun4i_spi.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/spi/sun4i_spi.c b/drivers/spi/sun4i_spi.c index b86b5a00ad..38cc743c61 100644 --- a/drivers/spi/sun4i_spi.c +++ b/drivers/spi/sun4i_spi.c @@ -129,7 +129,8 @@ static inline void sun4i_spi_drain_fifo(struct sun4i_spi_priv *priv, int len) while (len--) { byte = readb(&priv->regs->rxdata); - *priv->rx_buf++ = byte; + if (priv->rx_buf) + *priv->rx_buf++ = byte; } } |