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authorDan Bogdan Nechita <dan.bogdan.nechita@gmail.com>2016-02-23 10:48:45 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-03-02 01:55:13 +0100
commit1bb850a1b7f68b66361e658e334f9fdf8231f17d (patch)
treed7bffea3f7cb600631c93615783c32e482a0c937
parentdrivers/misc/ad525x_dpot: AD5274 fix RDAC read back errors (diff)
downloadlinux-1bb850a1b7f68b66361e658e334f9fdf8231f17d.tar.xz
linux-1bb850a1b7f68b66361e658e334f9fdf8231f17d.zip
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 <dan.bogdan.nechita@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/misc/ad525x_dpot.c2
1 files changed, 1 insertions, 1 deletions
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);