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ALSA: usb-audio: Use safer strscpy() instead of strcpy() 

Use a safer function strscpy() instead of strcpy() for copying to
arrays.

Only idiomatic code replacement, and no functional changes.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20250710100727.22653-100-tiwai@suse.de
pull/476/head
Takashi Iwai 2025-07-10 12:07:21 +02:00
parent 414e4f01f6
commit a9b25e8a43
4 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
sound/usb/card.c
View File

@ -756,7 +756,7 @@ static int snd_usb_audio_create(struct usb_interface *intf,
card->private_free = snd_usb_audio_free; card->private_free = snd_usb_audio_free;
strcpy(card->driver, "USB-Audio"); strscpy(card->driver, "USB-Audio");
sprintf(component, "USB%04x:%04x", sprintf(component, "USB%04x:%04x",
USB_ID_VENDOR(chip->usb_id), USB_ID_PRODUCT(chip->usb_id)); USB_ID_VENDOR(chip->usb_id), USB_ID_PRODUCT(chip->usb_id));
snd_component_add(card, component); snd_component_add(card, component);

2
sound/usb/midi.c
View File

@ -2407,7 +2407,7 @@ static int snd_usbmidi_create_rawmidi(struct snd_usb_midi *umidi,
out_ports, in_ports, &rmidi); out_ports, in_ports, &rmidi);
if (err < 0) if (err < 0)
return err; return err;
strcpy(rmidi->name, umidi->card->shortname); strscpy(rmidi->name, umidi->card->shortname);
rmidi->info_flags = SNDRV_RAWMIDI_INFO_OUTPUT | rmidi->info_flags = SNDRV_RAWMIDI_INFO_OUTPUT |
SNDRV_RAWMIDI_INFO_INPUT | SNDRV_RAWMIDI_INFO_INPUT |
SNDRV_RAWMIDI_INFO_DUPLEX; SNDRV_RAWMIDI_INFO_DUPLEX;

2
sound/usb/mixer.c
View File

@ -3569,7 +3569,7 @@ int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif)
struct usb_mixer_interface *mixer; struct usb_mixer_interface *mixer;
int err; int err;
strcpy(chip->card->mixername, "USB Mixer"); strscpy(chip->card->mixername, "USB Mixer");
mixer = kzalloc(sizeof(*mixer), GFP_KERNEL); mixer = kzalloc(sizeof(*mixer), GFP_KERNEL);
if (!mixer) if (!mixer)

2
sound/usb/stream.c
View File

@ -538,7 +538,7 @@ static int __snd_usb_add_audio_stream(struct snd_usb_audio *chip,
if (chip->pcm_devs > 0) if (chip->pcm_devs > 0)
sprintf(pcm->name, "USB Audio #%d", chip->pcm_devs); sprintf(pcm->name, "USB Audio #%d", chip->pcm_devs);
else else
strcpy(pcm->name, "USB Audio"); strscpy(pcm->name, "USB Audio");
snd_usb_init_substream(as, stream, fp, pd); snd_usb_init_substream(as, stream, fp, pd);