question about leds-88pm860x.c
Sorry. The original email had a mangled subject line.
regards,
dan carpenter
Quoted 32 lines · Dan Carpenter
Hi,
I was going through some Smatch stuff and it complains about something in
drivers/leds/leds-88pm860x.cCould you take a look at it? I'm not sure what was intended there.
drivers/leds/leds-88pm860x.c+228__check_device(6)warn: unsigned 'p->flags' is never less than zero.
222 static int__check_device(struct pm860x_led_pdata *pdata, char *name)223 { 224 struct pm860x_led_pdata *p = pdata; 225 int ret = -EINVAL; 226 227 while (p && p->id) { 228 if ((p->id != PM8606_ID_LED) || (p->flags < 0)) ^^^^^^^^^^^^ p->flags is an unsigned int so this condition is never true. 229 break; 230 231 if (!strncmp(name, pm860x_led_name[p->flags], 232 MFD_NAME_SIZE)) { 233 ret = (int)p->flags; 234 break; 235 } 236 p++; 237 } 238 return ret; 239 }regards,
dan carpenter
Quoted 5 lines · Haojian Zhuang
Thanks for your good catch. We needn't this checking at here. Now I format this patch.
Best Regards
Haojian
Sorry, I only noticed this after I had already sent the email but __check_device() in drivers/video/backlight/88pm860x_bl.c has the same thing.
regards,
dan carpenter