From 8f8edd491ac64c3cfe4e8ffff2b7385df5c02860 Mon Sep 17 00:00:00 2001 From: Javier Martinez Canillas Date: Wed, 20 Apr 2016 10:37:55 -0400 Subject: [PATCH] i2c: s3c2410: Print errno code in error logs The driver not always prints the error code in case of a failure but this information can be very useful for debugging. So let's print if available. Signed-off-by: Javier Martinez Canillas Reviewed-by: Krzysztof Kozlowski Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-s3c2410.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c index dde1abce07ee..c08830549578 100644 --- a/drivers/i2c/busses/i2c-s3c2410.c +++ b/drivers/i2c/busses/i2c-s3c2410.c @@ -926,7 +926,7 @@ static int s3c24xx_i2c_cpufreq_transition(struct notifier_block *nb, i2c_unlock_adapter(&i2c->adap); if (ret < 0) - dev_err(i2c->dev, "cannot find frequency\n"); + dev_err(i2c->dev, "cannot find frequency (%d)\n", ret); else dev_info(i2c->dev, "setting freq %d\n", got); } @@ -977,7 +977,8 @@ static int s3c24xx_i2c_parse_dt_gpio(struct s3c24xx_i2c *i2c) ret = gpio_request(gpio, "i2c-bus"); if (ret) { - dev_err(i2c->dev, "gpio [%d] request failed\n", gpio); + dev_err(i2c->dev, "gpio [%d] request failed (%d)\n", + gpio, ret); goto free_gpio; } }