diff options
| author |   Simon Arlott <simon@fire.lp0.eu> | 2009-04-23 18:19:02 +0100 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@suse.de> | 2009-05-08 19:34:56 -0700 |
| commit | 10107bd04fc88657204ca40af2ace33626496fd3 (patch) | |
| tree | fd943175cef02caf821fb9e4d1316787f1c2fdfe /drivers/usb/atm | |
| parent | Linux 2.6.30-rc5 (diff) | |
| download | linux-dev-10107bd04fc88657204ca40af2ace33626496fd3.tar.xz linux-dev-10107bd04fc88657204ca40af2ace33626496fd3.zip | |
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 <simon@fire.lp0.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/atm')
| -rw-r--r-- | drivers/usb/atm/cxacru.c | 10 |
1 files 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) |