/* * HWDEP Interface for HD-audio codec * * Copyright (c) 2007 Takashi Iwai * * This driver is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This driver is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include #include #include #include #include "hda_codec.h" #include "hda_local.h" #include #include /* * write/read an out-of-bound verb */ static int verb_write_ioctl(struct hda_codec *codec, struct hda_verb_ioctl __user *arg) { u32 verb, res; if (get_user(verb, &arg->verb)) return -EFAULT; res = snd_hda_codec_read(codec, verb >> 24, 0, (verb >> 8) & 0xffff, verb & 0xff); if (put_user(res, &arg->res)) return -EFAULT; return 0; } static int get_wcap_ioctl(struct hda_codec *codec, struct hda_verb_ioctl __user *arg) { u32 verb, res; if (get_user(verb, &arg->verb)) return -EFAULT; res = get_wcaps(codec, verb >> 24); if (put_user(res, &arg->res)) return -EFAULT; return 0; } /* */ static int hda_hwdep_ioctl(struct snd_hwdep *hw, struct file *file, unsigned int cmd, unsigned long arg) { struct hda_codec *codec = hw->private_data; void __user *argp = (void __user *)arg; switch (cmd) { case HDA_IOCTL_PVERSION: return put_user(HDA_HWDEP_VERSION, (int __user *)argp); case HDA_IOCTL_VERB_WRITE: return verb_write_ioctl(codec, argp); case HDA_IOCTL_GET_WCAP: return get_wcap_ioctl(codec, argp); } return -ENOIOCTLCMD; } #ifdef CONFIG_COMPAT static int hda_hwdep_ioctl_compat(struct snd_hwdep *hw, struct file *file, unsigned int cmd, unsigned long arg) { return hda_hwdep_ioctl(hw, file, cmd, (unsigned long)compat_ptr(arg)); } #endif static int hda_hwdep_open(struct snd_hwdep *hw, struct file *file) { #ifndef CONFIG_SND_DEBUG_VERBOSE if (!capable(CAP_SYS_RAWIO)) return -EACCES; #endif return 0; } int snd_hda_create_hwdep(struct hda_codec *codec) { char hwname[16]; struct snd_hwdep *hwdep; int err; sprintf(hwname, "HDA Codec %d", codec->addr); err = snd_hwdep_new(codec->card, hwname, codec->addr, &hwdep); if (err < 0) return err; codec->hwdep = hwdep; sprintf(hwdep->name, "HDA Codec %d", codec->addr); hwdep->iface = SNDRV_HWDEP_IFACE_HDA; hwdep->private_data = codec; hwdep->exclusive = 1; hwdep->ops.open = hda_hwdep_open; hwdep->ops.ioctl = hda_hwdep_ioctl; #ifdef CONFIG_COMPAT hwdep->ops.ioctl_compat = hda_hwdep_ioctl_compat; #endif /* for sysfs */ hwdep->dev.groups = snd_hda_dev_attr_groups; dev_set_drvdata(&hwdep->dev, codec); return 0; } ame='id' value='c73e44269369e936165f0f9b61f1f09a11dae01c'/>
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authorVincent <vincent.stehle@laposte.net>2017-01-30 15:06:43 +0100
committerDavid S. Miller <davem@davemloft.net>2017-01-31 13:07:40 -0500
commitc73e44269369e936165f0f9b61f1f09a11dae01c (patch)
treee2188e900ba06302f8ed2746cb07edd3efbc5c35 /net/mac80211/tx.c
parent040587af31228d82c52267f717c9fcdb65f36335 (diff)
net: thunderx: avoid dereferencing xcv when NULL
This fixes the following smatch and coccinelle warnings: drivers/net/ethernet/cavium/thunder/thunder_xcv.c:119 xcv_setup_link() error: we previously assumed 'xcv' could be null (see line 118) [smatch] drivers/net/ethernet/cavium/thunder/thunder_xcv.c:119:16-20: ERROR: xcv is NULL but dereferenced. [coccinelle] Fixes: 6465859aba1e66a5 ("net: thunderx: Add RGMII interface type support") Signed-off-by: Vincent Stehlé <vincent.stehle@laposte.net> Cc: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/mac80211/tx.c')
iv class='diffstat-header'>Diffstat (limited to 'net/mac80211/rc80211_minstrel.c')