From: Christophe JAILLET christophe.jaillet@wanadoo.fr
[ Upstream commit e6a0b671880207566e1ece983bf989dde60bc1d7 ]
wait_for_completion_timeout() never returns a <0 value. It returns either on timeout or a positive value (at least 1, or number of jiffies left till timeout)
So, fix the error handling path and return -ETIMEDOUT should a timeout occur.
Fixes: b0823ee35cf9 ("spi: Add spi driver for Socionext SynQuacer platform") Signed-off-by: Christophe JAILLET christophe.jaillet@wanadoo.fr Acked-by: Jassi Brar jaswinder.singh@linaro.org Link: https://lore.kernel.org/r/c2040bf3cfa201fd8890cfab14fa5a701ffeca14.167646607... Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/spi/spi-synquacer.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/spi/spi-synquacer.c b/drivers/spi/spi-synquacer.c index 1e10af6e10a90..5d6e4a59ce29b 100644 --- a/drivers/spi/spi-synquacer.c +++ b/drivers/spi/spi-synquacer.c @@ -472,10 +472,9 @@ static int synquacer_spi_transfer_one(struct spi_master *master, read_fifo(sspi); }
- if (status < 0) { - dev_err(sspi->dev, "failed to transfer. status: 0x%x\n", - status); - return status; + if (status == 0) { + dev_err(sspi->dev, "failed to transfer. Timeout.\n"); + return -ETIMEDOUT; }
return 0;