spi: spi-msm-geni: Propagate missing change from 4.19 to 5.4



Propagate following change from 4.19 to 5.4 for SPI driver.
'commit 67192635d468 ("spi: spi-geni-qcom: Check for zero length
transfer")'.

Change-Id: I27bdd8b544ba1bdaa0a868d2260c4f76c156c215
Signed-off-by: Vipin Deep Kaur <vkaur@codeaurora.org>

parent e71111a9

drivers/spi/spi-msm-geni.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -1213,6 +1213,12 @@ static int spi_geni_transfer_one(struct spi_master *spi,
		return -EINVAL;
		}

		/* Check for zero length transfer */
		if (xfer->len < 1) {
		dev_err(mas->dev, "Zero length transfer\n");
		return -EINVAL;
		}

		if (mas->cur_xfer_mode != GSI_DMA) {
		reinit_completion(&mas->xfer_done);
		setup_fifo_xfer(xfer, mas, slv->mode, spi);