diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2017-06-11 17:15:16 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-06-13 10:54:40 +0200 |
| commit | 0bd08fc8db593eb79bd40729279016fd5d7edc09 (patch) | |
| tree | a6851c32200fdb748a506c206ca1442bbc8917f7 /drivers/usb/misc/usbsevseg.c | |
| parent | d3be974a9c4eac83c1af15c966857d123a8436ba (diff) | |
usb: misc: usbsevseg: Use sysfs_match_string() helper
Use sysfs_match_string() helper instead of open coded variant.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/misc/usbsevseg.c')
| -rw-r--r-- | drivers/usb/misc/usbsevseg.c | 18 |
1 files changed, 8 insertions, 10 deletions
diff --git a/drivers/usb/misc/usbsevseg.c b/drivers/usb/misc/usbsevseg.c index a0ba5298160c..388fae6373db 100644 --- a/drivers/usb/misc/usbsevseg.c +++ b/drivers/usb/misc/usbsevseg.c @@ -33,7 +33,7 @@ static const struct usb_device_id id_table[] = { MODULE_DEVICE_TABLE(usb, id_table); /* the different text display modes the device is capable of */ -static char *display_textmodes[] = {"raw", "hex", "ascii", NULL}; +static const char *display_textmodes[] = {"raw", "hex", "ascii"}; struct usb_sevsegdev { struct usb_device *udev; @@ -280,7 +280,7 @@ static ssize_t show_attr_textmode(struct device *dev, buf[0] = 0; - for (i = 0; display_textmodes[i]; i++) { + for (i = 0; i < ARRAY_SIZE(display_textmodes); i++) { if (mydev->textmode == i) { strcat(buf, " ["); strcat(buf, display_textmodes[i]); @@ -304,15 +304,13 @@ static ssize_t set_attr_textmode(struct device *dev, struct usb_sevsegdev *mydev = usb_get_intfdata(intf); int i; - for (i = 0; display_textmodes[i]; i++) { - if (sysfs_streq(display_textmodes[i], buf)) { - mydev->textmode = i; - update_display_visual(mydev, GFP_KERNEL); - return count; - } - } + i = sysfs_match_string(display_textmodes, buf); + if (i < 0) + return i; - return -EINVAL; + mydev->textmode = i; + update_display_visual(mydev, GFP_KERNEL); + return count; } static DEVICE_ATTR(textmode, S_IRUGO | S_IWUSR, show_attr_textmode, set_attr_textmode); |