From: Takashi Iwai <tiwai@suse.de>
To: alsa-devel@alsa-project.org
Subject: [PATCH] ALSA: usb-audio: Convert the last strlcpy() usage
Date: Fri, 15 Jan 2021 11:04:37 +0100 [thread overview]
Message-ID: <20210115100437.20906-1-tiwai@suse.de> (raw)
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.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
I forgot to submit this as well in the previous patch, but they are
applied independently.
sound/usb/card.c | 11 +++++------
1 file 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));
--
2.26.2
reply other threads:[~2021-01-15 10:05 UTC|newest]
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