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cxacru: Fix negative dB output

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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: David S. Miller <davem@davemloft.net>
This commit is contained in:
Simon Arlott 2009-04-27 03:22:15 -07:00 committed by David S. Miller
parent 15b8e19131
commit 0456b4f8b7
1 changed files with 8 additions and 2 deletions
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10
drivers/usb/atm/cxacru.c
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@ -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)