| Message ID | 20201216144114.v2.4.I666b37646de9652cef438ac7c2c6c2053367fc6b@changeid |
|---|---|
| State | Superseded |
| Headers | show |
| Series | [v2,1/4] spi: spi-geni-qcom: Fix geni_spi_isr() NULL dereference in timeout case | expand |
diff --git a/drivers/spi/spi-geni-qcom.c b/drivers/spi/spi-geni-qcom.c index 0e4fa52ac017..744009875762 100644 --- a/drivers/spi/spi-geni-qcom.c +++ b/drivers/spi/spi-geni-qcom.c @@ -220,8 +220,10 @@ static void spi_geni_set_cs(struct spi_device *slv, bool set_flag) spin_unlock_irq(&mas->lock); time_left = wait_for_completion_timeout(&mas->cs_done, HZ); - if (!time_left) + if (!time_left) { + dev_warn(mas->dev, "Timeout setting chip select\n"); handle_fifo_timeout(spi, NULL); + } exit: pm_runtime_put(mas->dev);
If we're using geni to manage the chip select line (don't do it--use a GPIO!) and we happen to get a timeout waiting for the chip select command to be completed, no errors are printed even though things might not be in the best shape. Let's add a print. Signed-off-by: Douglas Anderson <dianders@chromium.org> --- Changes in v2: - ("spi: spi-geni-qcom: Print an error when we timeout setting the CS") new for v2 drivers/spi/spi-geni-qcom.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)