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w1: mxc_w1: Fix incorrect "presence" status 

W1 reset_bus() should return zero if slave device is present.
This patch fix this issue.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alexander Shiyan 2014-05-08 11:56:37 +04:00 committed by Greg Kroah-Hartman
parent b29f680c4f
commit 37014f5bd0
1 changed files with 1 additions and 1 deletions
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2
drivers/w1/masters/mxc_w1.c
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@ -66,7 +66,7 @@ static u8 mxc_w1_ds2_reset_bus(void *data)
udelay(100); udelay(100);
} }
return !!(reg_val & MXC_W1_CONTROL_PST); return !(reg_val & MXC_W1_CONTROL_PST);
} }
/* /*