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| author | Takashi Iwai <tiwai@suse.de> | 2020-03-13 14:02:41 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2020-03-13 15:59:04 +0100 |
| commit | 0a7efa14e61ae2132fd718887deb28479b33386b (patch) | |
| tree | bbc0c46cce80b04d5f35daeb1b19bd77d3aedff9 /sound/hda | |
| parent | 296a37fd029dd8a911396e3c28e0bbd5a2720a5d (diff) | |
| download | linux-stable-0a7efa14e61ae2132fd718887deb28479b33386b.tar.gz linux-stable-0a7efa14e61ae2132fd718887deb28479b33386b.tar.bz2 linux-stable-0a7efa14e61ae2132fd718887deb28479b33386b.zip | |
ALSA: hda: Use scnprintf() for string truncation
snd_hdac_codec_modalias() truncates the string to the given size and
returns its size, but it returned a wrong size from snprintf().
snprintf() returns the would-be-output size, not the actual size.
Use scnprintf() instead to return the correct size.
Link: https://lore.kernel.org/r/20200313130241.8970-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/hda')
| -rw-r--r-- | sound/hda/hdac_device.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/hda/hdac_device.c b/sound/hda/hdac_device.c index 9a526aeef8da..e3119f5cb0d5 100644 --- a/sound/hda/hdac_device.c +++ b/sound/hda/hdac_device.c @@ -204,7 +204,7 @@ EXPORT_SYMBOL_GPL(snd_hdac_device_set_chip_name); */ int snd_hdac_codec_modalias(struct hdac_device *codec, char *buf, size_t size) { - return snprintf(buf, size, "hdaudio:v%08Xr%08Xa%02X\n", + return scnprintf(buf, size, "hdaudio:v%08Xr%08Xa%02X\n", codec->vendor_id, codec->revision_id, codec->type); } EXPORT_SYMBOL_GPL(snd_hdac_codec_modalias); |