From 69b44c1630b7f618c9dec217d5497744224d90b8 Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Sun, 18 Nov 2012 20:51:20 -0800 Subject: leds: leds-lp5521: replace strict_strtoul() with kstrtoul() The usage of strict_strtoul() is not preferred, because strict_strtoul() is obsolete. Thus, kstrtoul() should be used. Signed-off-by: Jingoo Han Signed-off-by: Bryan Wu --- drivers/leds/leds-lp5521.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/leds/leds-lp5521.c') diff --git a/drivers/leds/leds-lp5521.c b/drivers/leds/leds-lp5521.c index 2064aefedc0..362e29e27db 100644 --- a/drivers/leds/leds-lp5521.c +++ b/drivers/leds/leds-lp5521.c @@ -616,7 +616,7 @@ static ssize_t store_led_pattern(struct device *dev, unsigned long val; int ret; - ret = strict_strtoul(buf, 16, &val); + ret = kstrtoul(buf, 16, &val); if (ret) return ret; -- cgit v1.2.3 From 313e8b50c89a76c4f36af527f937c2f8cf4cad41 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Tue, 20 Nov 2012 01:59:00 -0800 Subject: leds: lp5521: Fix return value Return the value obtained from i2c_smbus_read_byte_data() instead of -EIO. Silences the following smatch warning: drivers/leds/leds-lp5521.c:155 lp5521_read() info: why not propagate 'ret' from i2c_smbus_read_byte_data() instead of -5? Signed-off-by: Sachin Kamat Signed-off-by: Bryan Wu --- drivers/leds/leds-lp5521.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/leds/leds-lp5521.c') diff --git a/drivers/leds/leds-lp5521.c b/drivers/leds/leds-lp5521.c index 362e29e27db..8505afe4b52 100644 --- a/drivers/leds/leds-lp5521.c +++ b/drivers/leds/leds-lp5521.c @@ -152,7 +152,7 @@ static int lp5521_read(struct i2c_client *client, u8 reg, u8 *buf) ret = i2c_smbus_read_byte_data(client, reg); if (ret < 0) - return -EIO; + return ret; *buf = ret; return 0; -- cgit v1.2.3 From 2f05e1d4458f9cb68d4d36fb47e6830fec03c80e Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Sun, 2 Dec 2012 09:29:30 -0800 Subject: leds: leds-lp5521: return an error code on error in probe() If "buf" wasn't equal to LP5521_REG_R_CURR_DEFAULT the probe fails but we still return zero. I've changed it to print an error message and return -EINVAL. Reported-by: Ben Hutchings Signed-off-by: Dan Carpenter Signed-off-by: Bryan Wu --- drivers/leds/leds-lp5521.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'drivers/leds/leds-lp5521.c') diff --git a/drivers/leds/leds-lp5521.c b/drivers/leds/leds-lp5521.c index 8505afe4b52..ddc43152915 100644 --- a/drivers/leds/leds-lp5521.c +++ b/drivers/leds/leds-lp5521.c @@ -788,10 +788,17 @@ static int __devinit lp5521_probe(struct i2c_client *client, * LP5521_REG_ENABLE register will not have any effect - strange! */ ret = lp5521_read(client, LP5521_REG_R_CURRENT, &buf); - if (ret || buf != LP5521_REG_R_CURR_DEFAULT) { + if (ret) { dev_err(&client->dev, "error in resetting chip\n"); goto fail2; } + if (buf != LP5521_REG_R_CURR_DEFAULT) { + dev_err(&client->dev, + "unexpected data in register (expected 0x%x got 0x%x)\n", + LP5521_REG_R_CURR_DEFAULT, buf); + ret = -EINVAL; + goto fail2; + } usleep_range(10000, 20000); ret = lp5521_detect(client); -- cgit v1.2.3