[PATCH] spi: fix spi_write_then_read() comment

[Jiri Pirko]

[PATCH] spi: fix spi_write_then_read() comment

Spotted a tiny mislead. I guess buffer need not be dma-safe, not rx data length.

Signed-off-by: Jiri Pirko <jpirko@xxxxxxxxxx>

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 8eba98c..85a46c7 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -636,8 +636,8 @@ static u8	*buf;
  * @spi: device with which data will be exchanged
  * @txbuf: data to be written (need not be dma-safe)
  * @n_tx: size of txbuf, in bytes
- * @rxbuf: buffer into which data will be read
- * @n_rx: size of rxbuf, in bytes (need not be dma-safe)
+ * @rxbuf: buffer into which data will be read (need not be dma-safe)
+ * @n_rx: size of rxbuf, in bytes
  * Context: can sleep
  *
  * This performs a half duplex MicroWire style transaction with the
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