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can: hi311x: fix a signedness bug in hi3110_cmd()

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[ Upstream commit f6b3c7848e66e9046c8a79a5b88fd03461cc252b ]

The hi3110_cmd() is supposed to return zero on success and negative
error codes on failure, but it was accidentally declared as a u8 when
it needs to be an int type.

Fixes: 57e83fb9b7 ("can: hi311x: Add Holt HI-311x CAN driver")
Link: https://lore.kernel.org/r/20210729141246.GA1267@kili
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Dan Carpenter 2021-07-29 17:12:46 +03:00 committed by Greg Kroah-Hartman
parent f4fa45b0f9
commit 21734a31c9
1 changed files with 1 additions and 1 deletions
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2
drivers/net/can/spi/hi311x.c
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@ -218,7 +218,7 @@ static int hi3110_spi_trans(struct spi_device *spi, int len)
return ret;
}
static u8 hi3110_cmd(struct spi_device *spi, u8 command)
static int hi3110_cmd(struct spi_device *spi, u8 command)
{
struct hi3110_priv *priv = spi_get_drvdata(spi);