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spi: synquacer: Fix timeout handling in synquacer_spi_transfer_one()

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[ 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: b0823ee35c ("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/c2040bf3cfa201fd8890cfab14fa5a701ffeca14.1676466072.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Christophe JAILLET 2023-02-15 14:01:28 +01:00 committed by Greg Kroah-Hartman
parent b89d2ed564
commit d6250e00bf
1 changed files with 3 additions and 4 deletions
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7
drivers/spi/spi-synquacer.c
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@ -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;