From: Dan Bogdan Nechita Date: Tue, 23 Feb 2016 09:48:45 +0000 (+0200) Subject: misc: ad525x_dpot: Fix the enabling of the "otpXen" attributes X-Git-Tag: archive/raspbian/4.9.13-1+rpi1~10^2~2722^2~24 X-Git-Url: https://dgit.raspbian.org/%22http:/www.example.com/cgi/%22https:/www.github.com/%22bookmarks:///%22http:/www.example.com/cgi/%22https:/www.github.com/%22bookmarks:/?a=commitdiff_plain;h=1bb850a1b7f68b66361e658e334f9fdf8231f17d;p=linux-4.9.git misc: ad525x_dpot: Fix the enabling of the "otpXen" attributes Currently writing the attributes with "echo" will result in comparing: "enabled\n" with "enabled\0" and attribute is always set to false. Use the sysfs_streq() instead because it treats both NUL and new-line-then-NUL as equivalent string terminations. Signed-off-by: Dan Bogdan Nechita Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/misc/ad525x_dpot.c b/drivers/misc/ad525x_dpot.c index f1a0b99f5a9a..fe1672747bc1 100644 --- a/drivers/misc/ad525x_dpot.c +++ b/drivers/misc/ad525x_dpot.c @@ -452,7 +452,7 @@ static ssize_t sysfs_set_reg(struct device *dev, int err; if (reg & DPOT_ADDR_OTP_EN) { - if (!strncmp(buf, "enabled", sizeof("enabled"))) + if (sysfs_streq(buf, "enabled")) set_bit(DPOT_RDAC_MASK & reg, data->otp_en_mask); else clear_bit(DPOT_RDAC_MASK & reg, data->otp_en_mask);