spi: spi-ti-qspi: remove redundant assignment to variable ret

Variable ret is being assigned a value but it is never read, instead
the variable is being reassigned later in the exit path via label
no_dma. Remove the redundant assignment.

Signed-off-by: Colin Ian King <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Mark Brown <[email protected]>

Author: ColinIanKing

drivers/spi/spi-ti-qspi.c

@@ -863,7 +863,6 @@ static int ti_qspi_probe(struct platform_device *pdev)
 		dev_err(qspi->dev,
 			"No Rx DMA available, trying mmap mode\n");
 		qspi->rx_chan = NULL;
-		ret = 0;
 		goto no_dma;
 	}
 	qspi->rx_bb_addr = dma_alloc_coherent(qspi->dev,