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Staging: panel: Replace NULL comparison. 

Use ! operating instead of NULL checks.
Addresses "CHECK: Comparison to NULL" from checkpatch.pl.

Signed-off-by: Aybuke Ozdemir <aybuke.147@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Aybuke Ozdemir 2015-10-03 14:52:09 +03:00 committed by Greg Kroah-Hartman
parent 5a731c70bc
commit b565b3fbec
1 changed files with 10 additions and 10 deletions
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20
drivers/staging/panel/panel.c
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@ -920,7 +920,7 @@ static void lcd_gotoxy(void)
static void lcd_print(char c)
{
if (lcd.addr.x < lcd.bwidth) {
if (lcd_char_conv != NULL)
if (lcd_char_conv)
c = lcd_char_conv[(unsigned char)c];
lcd_write_data(c);
lcd.addr.x++;
@ -1118,7 +1118,7 @@ static inline int handle_lcd_special_code(void)
break;
case '*':
/* flash back light using the keypad timer */
if (scan_timer.function != NULL) {
if (scan_timer.function) {
if (lcd.light_tempo == 0
&& ((lcd.flags & LCD_FLAG_L) == 0))
lcd_backlight(1);
@ -1200,7 +1200,7 @@ static inline int handle_lcd_special_code(void)
char value;
int addr;
if (strchr(esc, ';') == NULL)
if (!strchr(esc, ';'))
break;
esc++;
@ -1246,7 +1246,7 @@ static inline int handle_lcd_special_code(void)
}
case 'x': /* gotoxy : LxXXX[yYYY]; */
case 'y': /* gotoxy : LyYYY[xXXX]; */
if (strchr(esc, ';') == NULL)
if (!strchr(esc, ';'))
break;
while (*esc) {
@ -1844,7 +1844,7 @@ static inline int input_state_high(struct logical_input *input)
if ((input->type == INPUT_TYPE_STD) &&
(input->high_timer == 0)) {
input->high_timer++;
if (input->u.std.press_fct != NULL)
if (input->u.std.press_fct)
input->u.std.press_fct(input->u.std.press_data);
} else if (input->type == INPUT_TYPE_KBD) {
/* will turn on the light */
@ -1924,7 +1924,7 @@ static inline void input_state_falling(struct logical_input *input)
if (input->type == INPUT_TYPE_STD) {
void (*release_fct)(int) = input->u.std.release_fct;
if (release_fct != NULL)
if (release_fct)
release_fct(input->u.std.release_data);
} else if (input->type == INPUT_TYPE_KBD) {
char *release_str = input->u.kbd.release_str;
@ -2025,7 +2025,7 @@ static void panel_scan_timer(void)
static void init_scan_timer(void)
{
if (scan_timer.function != NULL)
if (scan_timer.function)
return; /* already started */
setup_timer(&scan_timer, (void *)&panel_scan_timer, 0);
@ -2229,7 +2229,7 @@ static void panel_attach(struct parport *port)
/* panel_cb.flags = 0 should be PARPORT_DEV_EXCL? */
pprt = parport_register_dev_model(port, "panel", &panel_cb, 0);
if (pprt == NULL) {
if (!pprt) {
pr_err("%s: port->number=%d parport=%d, parport_register_device() failed\n",
__func__, port->number, parport);
return;
@ -2276,10 +2276,10 @@ static void panel_detach(struct parport *port)
__func__, port->number, parport);
return;
}
if (scan_timer.function != NULL)
if (scan_timer.function)
del_timer_sync(&scan_timer);
if (pprt != NULL) {
if (pprt) {
if (keypad.enabled) {
misc_deregister(&keypad_dev);
keypad_initialized = 0;