From 10107bd04fc88657204ca40af2ace33626496fd3 Mon Sep 17 00:00:00 2001 From: Simon Arlott Date: Thu, 23 Apr 2009 18:19:02 +0100 Subject: [PATCH] USB: cxacru: Fix negative dB output Values of dB between -0.99 and -0.01 will be output with the wrong sign. This converts the negative value to positive and outputs it with a "-" prefix. Signed-off-by: Simon Arlott Signed-off-by: Greg Kroah-Hartman --- drivers/usb/atm/cxacru.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c index 6789089e2461..56802d2e994b 100644 --- a/drivers/usb/atm/cxacru.c +++ b/drivers/usb/atm/cxacru.c @@ -227,8 +227,14 @@ static ssize_t cxacru_sysfs_showattr_s8(s8 value, char *buf) static ssize_t cxacru_sysfs_showattr_dB(s16 value, char *buf) { - return snprintf(buf, PAGE_SIZE, "%d.%02u\n", - value / 100, abs(value) % 100); + if (likely(value >= 0)) { + return snprintf(buf, PAGE_SIZE, "%u.%02u\n", + value / 100, value % 100); + } else { + value = -value; + return snprintf(buf, PAGE_SIZE, "-%u.%02u\n", + value / 100, value % 100); + } } static ssize_t cxacru_sysfs_showattr_bool(u32 value, char *buf) -- 2.20.1