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authorSimon Arlott <simon@fire.lp0.eu>2009-04-23 18:19:02 +0100
committerGreg Kroah-Hartman <gregkh@suse.de>2009-05-08 19:34:56 -0700
commit10107bd04fc88657204ca40af2ace33626496fd3 (patch)
treefd943175cef02caf821fb9e4d1316787f1c2fdfe /drivers/usb
parent091bf7624d1c90cec9e578a18529f615213ff847 (diff)
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')
-rw-r--r--drivers/usb/atm/cxacru.c10
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)