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| author | Keiji Hayashibara <hayashibara.keiji@socionext.com> | 2019-06-26 03:41:47 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-06-26 14:30:37 +0300 |
| commit | e4671df0bfd67d4864de014fa1751d5e2a56c7a6 (patch) | |
| tree | dff190447f929e0aacd0c12ad1e428162ebae015 /drivers/spi/spi-uniphier.c | |
| parent | 94613d5ae1091a28b33f38e18d96e8d953ac18df (diff) | |
| download | linux-e4671df0bfd67d4864de014fa1751d5e2a56c7a6.tar.xz | |
spi: uniphier: fix timeout error
Timeout error was silently ignored.
This commit adds timeout error handling and modifies return type of
wait_for_completion_timeout().
Signed-off-by: Keiji Hayashibara <hayashibara.keiji@socionext.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/spi-uniphier.c')
| -rw-r--r-- | drivers/spi/spi-uniphier.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/spi/spi-uniphier.c b/drivers/spi/spi-uniphier.c index 5a6137fe172d..c3c35c041ef1 100644 --- a/drivers/spi/spi-uniphier.c +++ b/drivers/spi/spi-uniphier.c @@ -328,7 +328,8 @@ static int uniphier_spi_transfer_one(struct spi_master *master, struct spi_transfer *t) { struct uniphier_spi_priv *priv = spi_master_get_devdata(master); - int status; + struct device *dev = master->dev.parent; + unsigned long time_left; uniphier_spi_setup_transfer(spi, t); @@ -338,13 +339,15 @@ static int uniphier_spi_transfer_one(struct spi_master *master, uniphier_spi_irq_enable(spi, SSI_IE_RCIE | SSI_IE_RORIE); - status = wait_for_completion_timeout(&priv->xfer_done, - msecs_to_jiffies(SSI_TIMEOUT_MS)); + time_left = wait_for_completion_timeout(&priv->xfer_done, + msecs_to_jiffies(SSI_TIMEOUT_MS)); uniphier_spi_irq_disable(spi, SSI_IE_RCIE | SSI_IE_RORIE); - if (status < 0) - return status; + if (!time_left) { + dev_err(dev, "transfer timeout.\n"); + return -ETIMEDOUT; + } return priv->error; } |