diff options
| author | Takashi Iwai <tiwai@suse.de> | 2021-01-15 11:04:37 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2021-01-15 11:05:26 +0100 |
| commit | 42ef170d57d8fc59b36619b00cadacac84ecfb90 (patch) | |
| tree | 6b9996e859506b1a52d8859e4921dee09ad265ce /sound/usb | |
| parent | e8afdfdc8125801b1e28b5a54d2bd94cf2d59965 (diff) | |
| download | linux-42ef170d57d8fc59b36619b00cadacac84ecfb90.tar.bz2 | |
ALSA: usb-audio: Convert the last strlcpy() usage
The last remaining usage of strlcpy() in USB-audio driver is the setup
of the card longname string. Basically we need to know whether any
non-empty string is set or not, and no real length is needed.
Refactor the code and use strscpy() instead. After this change,
strlcpy() is gone from all sound/* code.
Link: https://lore.kernel.org/r/20210115100437.20906-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb')
| -rw-r--r-- | sound/usb/card.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/sound/usb/card.c b/sound/usb/card.c index 85e79b9ecb08..45407cb81b66 100644 --- a/sound/usb/card.c +++ b/sound/usb/card.c @@ -514,18 +514,17 @@ static void usb_audio_make_longname(struct usb_device *dev, s = preset->vendor_name; else if (quirk && quirk->vendor_name) s = quirk->vendor_name; + *card->longname = 0; if (s && *s) { - len = strlcpy(card->longname, s, sizeof(card->longname)); + strscpy(card->longname, s, sizeof(card->longname)); } else { /* retrieve the vendor and device strings as longname */ if (dev->descriptor.iManufacturer) - len = usb_string(dev, dev->descriptor.iManufacturer, - card->longname, sizeof(card->longname)); - else - len = 0; + usb_string(dev, dev->descriptor.iManufacturer, + card->longname, sizeof(card->longname)); /* we don't really care if there isn't any vendor string */ } - if (len > 0) { + if (*card->longname) { strim(card->longname); if (*card->longname) strlcat(card->longname, " ", sizeof(card->longname)); |