Commit 26cfc0db authored by Quanyang Wang's avatar Quanyang Wang Committed by Mark Brown

spi: spi-zynq-qspi: use wait_for_completion_timeout to make zynq_qspi_exec_mem_op not interruptible

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: 67dca5e5 ("spi: spi-mem: Add support for Zynq QSPI controller")
Signed-off-by: default avatarQuanyang Wang <quanyang.wang@windriver.com>
Link: https://lore.kernel.org/r/20210826005930.20572-1-quanyang.wang@windriver.comSigned-off-by: default avatarMark Brown <broonie@kernel.org>
parent 0f887ac8
......@@ -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;
}
......
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