spi: spi-zynq-qspi: use wait_for_completion_timeout to make zynq_qspi_exec_mem_op...

The function wait_for_completion_interruptible_timeout will return
-ERESTARTSYS immediately when receiving SIGKILL signal which is sent
by "jffs2_gcd_mtd" during umounting jffs2. This will break the SPI memory
operation because the data transmitting may begin before the command or
address transmitting completes. Use wait_for_completion_timeout to prevent
the process from being interruptible.

Fixes: 67dca5e580f1 ("spi: spi-mem: Add support for Zynq QSPI controller")
Signed-off-by: Quanyang Wang <quanyang.wang@windriver.com>
Link: https://lore.kernel.org/r/20210826005930.20572-1-quanyang.wang@windriver.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/spi-zynq-qspi.c b/drivers/spi/spi-zynq-qspi.c
index 9262c64..cfa222c 100644 (file)
--- a/drivers/spi/spi-zynq-qspi.c
+++ b/drivers/spi/spi-zynq-qspi.c
@@ -545,7 +545,7 @@ static int zynq_qspi_exec_mem_op(struct spi_mem *mem,
                zynq_qspi_write_op(xqspi, ZYNQ_QSPI_FIFO_DEPTH, true);
                zynq_qspi_write(xqspi, ZYNQ_QSPI_IEN_OFFSET,
                                ZYNQ_QSPI_IXR_RXTX_MASK);
-               if (!wait_for_completion_interruptible_timeout(&xqspi->data_completion,
+               if (!wait_for_completion_timeout(&xqspi->data_completion,
                                                               msecs_to_jiffies(1000)))
                        err = -ETIMEDOUT;
        }
@@ -563,7 +563,7 @@ static int zynq_qspi_exec_mem_op(struct spi_mem *mem,
                zynq_qspi_write_op(xqspi, ZYNQ_QSPI_FIFO_DEPTH, true);
                zynq_qspi_write(xqspi, ZYNQ_QSPI_IEN_OFFSET,
                                ZYNQ_QSPI_IXR_RXTX_MASK);
-               if (!wait_for_completion_interruptible_timeout(&xqspi->data_completion,
+               if (!wait_for_completion_timeout(&xqspi->data_completion,
                                                               msecs_to_jiffies(1000)))
                        err = -ETIMEDOUT;
        }
@@ -579,7 +579,7 @@ static int zynq_qspi_exec_mem_op(struct spi_mem *mem,
                zynq_qspi_write_op(xqspi, ZYNQ_QSPI_FIFO_DEPTH, true);
                zynq_qspi_write(xqspi, ZYNQ_QSPI_IEN_OFFSET,
                                ZYNQ_QSPI_IXR_RXTX_MASK);
-               if (!wait_for_completion_interruptible_timeout(&xqspi->data_completion,
+               if (!wait_for_completion_timeout(&xqspi->data_completion,
                                                               msecs_to_jiffies(1000)))
                        err = -ETIMEDOUT;
 
@@ -603,7 +603,7 @@ static int zynq_qspi_exec_mem_op(struct spi_mem *mem,
                zynq_qspi_write_op(xqspi, ZYNQ_QSPI_FIFO_DEPTH, true);
                zynq_qspi_write(xqspi, ZYNQ_QSPI_IEN_OFFSET,
                                ZYNQ_QSPI_IXR_RXTX_MASK);
-               if (!wait_for_completion_interruptible_timeout(&xqspi->data_completion,
+               if (!wait_for_completion_timeout(&xqspi->data_completion,
                                                               msecs_to_jiffies(1000)))
                        err = -ETIMEDOUT;
        }