mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-14 15:54:15 +08:00
75b1a8f9d6
strlcpy is deprecated. see: Documentation/process/deprecated.rst Change the calls that do not use the strlcpy return value to the preferred strscpy. Done with cocci script: @@ expression e1, e2, e3; @@ - strlcpy( + strscpy( e1, e2, e3); This cocci script leaves the instances where the return value is used unchanged. After this patch, sound/ has 3 uses of strlcpy() that need to be manually inspected for conversion and changed one day. $ git grep -w strlcpy sound/ sound/usb/card.c: len = strlcpy(card->longname, s, sizeof(card->longname)); sound/usb/mixer.c: return strlcpy(buf, p->name, buflen); sound/usb/mixer.c: return strlcpy(buf, p->names[index], buflen); Miscellenea: o Remove trailing whitespace in conversion of sound/core/hwdep.c Link: https://lore.kernel.org/lkml/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/ Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/22b393d1790bb268769d0bab7bacf0866dcb0c14.camel@perches.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
125 lines
3.5 KiB
C
125 lines
3.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* 32bit -> 64bit ioctl wrapper for timer API
|
|
* Copyright (c) by Takashi Iwai <tiwai@suse.de>
|
|
*/
|
|
|
|
/* This file included from timer.c */
|
|
|
|
#include <linux/compat.h>
|
|
|
|
/*
|
|
* ILP32/LP64 has different size for 'long' type. Additionally, the size
|
|
* of storage alignment differs depending on architectures. Here, '__packed'
|
|
* qualifier is used so that the size of this structure is multiple of 4 and
|
|
* it fits to any architectures with 32 bit storage alignment.
|
|
*/
|
|
struct snd_timer_gparams32 {
|
|
struct snd_timer_id tid;
|
|
u32 period_num;
|
|
u32 period_den;
|
|
unsigned char reserved[32];
|
|
} __packed;
|
|
|
|
struct snd_timer_info32 {
|
|
u32 flags;
|
|
s32 card;
|
|
unsigned char id[64];
|
|
unsigned char name[80];
|
|
u32 reserved0;
|
|
u32 resolution;
|
|
unsigned char reserved[64];
|
|
};
|
|
|
|
static int snd_timer_user_gparams_compat(struct file *file,
|
|
struct snd_timer_gparams32 __user *user)
|
|
{
|
|
struct snd_timer_gparams gparams;
|
|
|
|
if (copy_from_user(&gparams.tid, &user->tid, sizeof(gparams.tid)) ||
|
|
get_user(gparams.period_num, &user->period_num) ||
|
|
get_user(gparams.period_den, &user->period_den))
|
|
return -EFAULT;
|
|
|
|
return timer_set_gparams(&gparams);
|
|
}
|
|
|
|
static int snd_timer_user_info_compat(struct file *file,
|
|
struct snd_timer_info32 __user *_info)
|
|
{
|
|
struct snd_timer_user *tu;
|
|
struct snd_timer_info32 info;
|
|
struct snd_timer *t;
|
|
|
|
tu = file->private_data;
|
|
if (!tu->timeri)
|
|
return -EBADFD;
|
|
t = tu->timeri->timer;
|
|
if (!t)
|
|
return -EBADFD;
|
|
memset(&info, 0, sizeof(info));
|
|
info.card = t->card ? t->card->number : -1;
|
|
if (t->hw.flags & SNDRV_TIMER_HW_SLAVE)
|
|
info.flags |= SNDRV_TIMER_FLG_SLAVE;
|
|
strscpy(info.id, t->id, sizeof(info.id));
|
|
strscpy(info.name, t->name, sizeof(info.name));
|
|
info.resolution = t->hw.resolution;
|
|
if (copy_to_user(_info, &info, sizeof(*_info)))
|
|
return -EFAULT;
|
|
return 0;
|
|
}
|
|
|
|
enum {
|
|
SNDRV_TIMER_IOCTL_GPARAMS32 = _IOW('T', 0x04, struct snd_timer_gparams32),
|
|
SNDRV_TIMER_IOCTL_INFO32 = _IOR('T', 0x11, struct snd_timer_info32),
|
|
SNDRV_TIMER_IOCTL_STATUS_COMPAT32 = _IOW('T', 0x14, struct snd_timer_status32),
|
|
SNDRV_TIMER_IOCTL_STATUS_COMPAT64 = _IOW('T', 0x14, struct snd_timer_status64),
|
|
};
|
|
|
|
static long __snd_timer_user_ioctl_compat(struct file *file, unsigned int cmd,
|
|
unsigned long arg)
|
|
{
|
|
void __user *argp = compat_ptr(arg);
|
|
|
|
switch (cmd) {
|
|
case SNDRV_TIMER_IOCTL_PVERSION:
|
|
case SNDRV_TIMER_IOCTL_TREAD_OLD:
|
|
case SNDRV_TIMER_IOCTL_TREAD64:
|
|
case SNDRV_TIMER_IOCTL_GINFO:
|
|
case SNDRV_TIMER_IOCTL_GSTATUS:
|
|
case SNDRV_TIMER_IOCTL_SELECT:
|
|
case SNDRV_TIMER_IOCTL_PARAMS:
|
|
case SNDRV_TIMER_IOCTL_START:
|
|
case SNDRV_TIMER_IOCTL_START_OLD:
|
|
case SNDRV_TIMER_IOCTL_STOP:
|
|
case SNDRV_TIMER_IOCTL_STOP_OLD:
|
|
case SNDRV_TIMER_IOCTL_CONTINUE:
|
|
case SNDRV_TIMER_IOCTL_CONTINUE_OLD:
|
|
case SNDRV_TIMER_IOCTL_PAUSE:
|
|
case SNDRV_TIMER_IOCTL_PAUSE_OLD:
|
|
case SNDRV_TIMER_IOCTL_NEXT_DEVICE:
|
|
return __snd_timer_user_ioctl(file, cmd, (unsigned long)argp, true);
|
|
case SNDRV_TIMER_IOCTL_GPARAMS32:
|
|
return snd_timer_user_gparams_compat(file, argp);
|
|
case SNDRV_TIMER_IOCTL_INFO32:
|
|
return snd_timer_user_info_compat(file, argp);
|
|
case SNDRV_TIMER_IOCTL_STATUS_COMPAT32:
|
|
return snd_timer_user_status32(file, argp);
|
|
case SNDRV_TIMER_IOCTL_STATUS_COMPAT64:
|
|
return snd_timer_user_status64(file, argp);
|
|
}
|
|
return -ENOIOCTLCMD;
|
|
}
|
|
|
|
static long snd_timer_user_ioctl_compat(struct file *file, unsigned int cmd,
|
|
unsigned long arg)
|
|
{
|
|
struct snd_timer_user *tu = file->private_data;
|
|
long ret;
|
|
|
|
mutex_lock(&tu->ioctl_lock);
|
|
ret = __snd_timer_user_ioctl_compat(file, cmd, arg);
|
|
mutex_unlock(&tu->ioctl_lock);
|
|
return ret;
|
|
}
|