> > Also, while at it, if we see (*str && isspace(*str)), we can be sure to > > remove the first condition (*str) as the second one (isspace(*str)) also > > evaluates to 0 whenever *str == 0, making it redundant. In other words, > > "a char equals zero is never a space". I tried the following semantic patch (http://coccinelle.lip6.fr), and got the results below. @@ expression str; @@ ( // ignore skip_spaces cases while (*str && isspace(*str)) { \(str++;\|++str;\) } | - *str && isspace(*str) ) I haven't checked the results in any way, however. julia diff -u -p a/drivers/leds/led-class.c b/drivers/leds/led-class.c --- a/drivers/leds/led-class.c +++ b/drivers/leds/led-class.c @@ -50,7 +50,7 @@ static ssize_t led_brightness_store(stru unsigned long state = simple_strtoul(buf, &after, 10); size_t count = after - buf; - if (*after && isspace(*after)) + if (isspace(*after)) count++; if (count == size) { diff -u -p a/drivers/leds/ledtrig-timer.c b/drivers/leds/ledtrig-timer.c --- a/drivers/leds/ledtrig-timer.c +++ b/drivers/leds/ledtrig-timer.c @@ -83,7 +83,7 @@ static ssize_t led_delay_on_store(struct unsigned long state = simple_strtoul(buf, &after, 10); size_t count = after - buf; - if (*after && isspace(*after)) + if (isspace(*after)) count++; if (count == size) { @@ -127,7 +127,7 @@ static ssize_t led_delay_off_store(struc unsigned long state = simple_strtoul(buf, &after, 10); size_t count = after - buf; - if (*after && isspace(*after)) + if (isspace(*after)) count++; if (count == size) { diff -u -p a/drivers/video/backlight/lcd.c b/drivers/video/backlight/lcd.c --- a/drivers/video/backlight/lcd.c +++ b/drivers/video/backlight/lcd.c @@ -101,7 +101,7 @@ static ssize_t lcd_store_power(struct de int power = simple_strtoul(buf, &endp, 0); size_t size = endp - buf; - if (*endp && isspace(*endp)) + if (isspace(*endp)) size++; if (size != count) return -EINVAL; @@ -140,7 +140,7 @@ static ssize_t lcd_store_contrast(struct int contrast = simple_strtoul(buf, &endp, 0); size_t size = endp - buf; - if (*endp && isspace(*endp)) + if (isspace(*endp)) size++; if (size != count) return -EINVAL; diff -u -p a/drivers/video/display/display-sysfs.c b/drivers/video/display/display-sysfs.c --- a/drivers/video/display/display-sysfs.c +++ b/drivers/video/display/display-sysfs.c @@ -67,7 +67,7 @@ static ssize_t display_store_contrast(st contrast = simple_strtoul(buf, &endp, 0); size = endp - buf; - if (*endp && isspace(*endp)) + if (isspace(*endp)) size++; if (size != count) diff -u -p a/drivers/video/output.c b/drivers/video/output.c --- a/drivers/video/output.c +++ b/drivers/video/output.c @@ -50,7 +50,7 @@ static ssize_t video_output_store_state( int request_state = simple_strtoul(buf,&endp,0); size_t size = endp - buf; - if (*endp && isspace(*endp)) + if (isspace(*endp)) size++; if (size != count) return -EINVAL; _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
