From: Takashi Iwai <tiwai@suse.de>
To: alsa-devel@alsa-project.org
Subject: [PATCH 04/10] ALSA: Use strlcpy() instead of strncpy()
Date: Tue, 29 Oct 2013 17:00:27 +0100 [thread overview]
Message-ID: <1383062433-9388-5-git-send-email-tiwai@suse.de> (raw)
In-Reply-To: <1383062433-9388-1-git-send-email-tiwai@suse.de>
We tend to make stupid mistakes with strncpy(). Let's take a safer
one, strlcpy().
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
sound/arm/pxa2xx-ac97.c | 2 +-
sound/i2c/other/ak4xxx-adda.c | 2 +-
sound/pci/cs5535audio/cs5535audio_olpc.c | 4 ++--
sound/pci/ice1712/psc724.c | 4 ++--
sound/pci/ice1712/wm8776.c | 2 +-
sound/pci/rme9652/hdspm.c | 2 +-
6 files changed, 8 insertions(+), 8 deletions(-)
diff --git a/sound/arm/pxa2xx-ac97.c b/sound/arm/pxa2xx-ac97.c
index 5066a3768b28..9a2ac1e0f77a 100644
--- a/sound/arm/pxa2xx-ac97.c
+++ b/sound/arm/pxa2xx-ac97.c
@@ -185,7 +185,7 @@ static int pxa2xx_ac97_probe(struct platform_device *dev)
goto err;
card->dev = &dev->dev;
- strncpy(card->driver, dev->dev.driver->name, sizeof(card->driver));
+ strlcpy(card->driver, dev->dev.driver->name, sizeof(card->driver));
ret = pxa2xx_pcm_new(card, &pxa2xx_ac97_pcm_client, &pxa2xx_ac97_pcm);
if (ret)
diff --git a/sound/i2c/other/ak4xxx-adda.c b/sound/i2c/other/ak4xxx-adda.c
index ed726d1569e8..f3735e64791c 100644
--- a/sound/i2c/other/ak4xxx-adda.c
+++ b/sound/i2c/other/ak4xxx-adda.c
@@ -583,7 +583,7 @@ static int ak4xxx_capture_source_info(struct snd_kcontrol *kcontrol,
if (idx >= num_names)
return -EINVAL;
input_names = ak->adc_info[mixer_ch].input_names;
- strncpy(uinfo->value.enumerated.name, input_names[idx],
+ strlcpy(uinfo->value.enumerated.name, input_names[idx],
sizeof(uinfo->value.enumerated.name));
return 0;
}
diff --git a/sound/pci/cs5535audio/cs5535audio_olpc.c b/sound/pci/cs5535audio/cs5535audio_olpc.c
index da1cb9c4c76c..e6a44507d557 100644
--- a/sound/pci/cs5535audio/cs5535audio_olpc.c
+++ b/sound/pci/cs5535audio/cs5535audio_olpc.c
@@ -161,13 +161,13 @@ int olpc_quirks(struct snd_card *card, struct snd_ac97 *ac97)
/* drop the original AD1888 HPF control */
memset(&elem, 0, sizeof(elem));
elem.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
- strncpy(elem.name, "High Pass Filter Enable", sizeof(elem.name));
+ strlcpy(elem.name, "High Pass Filter Enable", sizeof(elem.name));
snd_ctl_remove_id(card, &elem);
/* drop the original V_REFOUT control */
memset(&elem, 0, sizeof(elem));
elem.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
- strncpy(elem.name, "V_REFOUT Enable", sizeof(elem.name));
+ strlcpy(elem.name, "V_REFOUT Enable", sizeof(elem.name));
snd_ctl_remove_id(card, &elem);
/* add the OLPC-specific controls */
diff --git a/sound/pci/ice1712/psc724.c b/sound/pci/ice1712/psc724.c
index 302ac6ddd545..4019cf27d117 100644
--- a/sound/pci/ice1712/psc724.c
+++ b/sound/pci/ice1712/psc724.c
@@ -203,12 +203,12 @@ static void psc724_set_jack_state(struct snd_ice1712 *ice, bool hp_connected)
/* notify about master speaker mute change */
memset(&elem_id, 0, sizeof(elem_id));
elem_id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
- strncpy(elem_id.name, "Master Speakers Playback Switch",
+ strlcpy(elem_id.name, "Master Speakers Playback Switch",
sizeof(elem_id.name));
kctl = snd_ctl_find_id(ice->card, &elem_id);
snd_ctl_notify(ice->card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
/* and headphone mute change */
- strncpy(elem_id.name, spec->wm8776.ctl[WM8776_CTL_HP_SW].name,
+ strlcpy(elem_id.name, spec->wm8776.ctl[WM8776_CTL_HP_SW].name,
sizeof(elem_id.name));
kctl = snd_ctl_find_id(ice->card, &elem_id);
snd_ctl_notify(ice->card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
diff --git a/sound/pci/ice1712/wm8776.c b/sound/pci/ice1712/wm8776.c
index a3c05fe5daf9..5227cb08247f 100644
--- a/sound/pci/ice1712/wm8776.c
+++ b/sound/pci/ice1712/wm8776.c
@@ -52,7 +52,7 @@ static void snd_wm8776_activate_ctl(struct snd_wm8776 *wm,
unsigned int index_offset;
memset(&elem_id, 0, sizeof(elem_id));
- strncpy(elem_id.name, ctl_name, sizeof(elem_id.name));
+ strlcpy(elem_id.name, ctl_name, sizeof(elem_id.name));
elem_id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
kctl = snd_ctl_find_id(card, &elem_id);
if (!kctl)
diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c
index 2907e68150cb..e98dc008de0b 100644
--- a/sound/pci/rme9652/hdspm.c
+++ b/sound/pci/rme9652/hdspm.c
@@ -6400,7 +6400,7 @@ static int snd_hdspm_hwdep_ioctl(struct snd_hwdep *hw, struct file *file,
memset(&hdspm_version, 0, sizeof(hdspm_version));
hdspm_version.card_type = hdspm->io_type;
- strncpy(hdspm_version.cardname, hdspm->card_name,
+ strlcpy(hdspm_version.cardname, hdspm->card_name,
sizeof(hdspm_version.cardname));
hdspm_version.serial = hdspm->serial;
hdspm_version.firmware_rev = hdspm->firmware_rev;
--
1.8.4.1
next prev parent reply other threads:[~2013-10-29 15:57 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-29 16:00 [PATCH 00/10] Yet another small covery bug fixes Takashi Iwai
2013-10-29 16:00 ` [PATCH 01/10] ALSA: opl3: Fix possible negative array index access Takashi Iwai
2013-10-29 16:00 ` [PATCH 02/10] ALSA: pcsp: Fix initialization with nopcm=1 Takashi Iwai
2013-10-29 16:00 ` [PATCH 03/10] ALSA: Limit the fallback card id string size Takashi Iwai
2013-10-29 16:00 ` Takashi Iwai [this message]
2013-10-29 16:00 ` [PATCH 05/10] ALSA: ad1889: Fix right attenuation proc output Takashi Iwai
2013-10-29 16:00 ` [PATCH 06/10] ALSA: ali5451: Drop unused variable Takashi Iwai
2013-10-29 16:00 ` [PATCH 07/10] ALSA: rme96: Return error code in PCM copy ops Takashi Iwai
2013-11-15 9:40 ` Knut Petersen
2013-11-15 9:53 ` Takashi Iwai
2013-10-29 16:00 ` [PATCH 08/10] ALSA: ak4114: Fix wrong register array size Takashi Iwai
2013-10-29 16:00 ` [PATCH 09/10] ALSA: ice1724: Fix uninitialized variable access Takashi Iwai
2013-10-29 16:00 ` [PATCH 10/10] ALSA: lola: Fix uninitialized variable access in error message Takashi Iwai
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