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Commit 93e9a521 authored by Alexander Viro's avatar Alexander Viro Committed by Linus Torvalds
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[PATCH] sparse: cmpci annotation 

cmpci annotated
parent 0dba19d2
Hide whitespace changes
Inline Side-by-side
Showing with 72 additions and 68 deletions
sound/oss/cmpci.c
View file @ 93e9a521
......@@ -980,13 +980,13 @@ static void set_ac3(struct cm_state *s, unsigned rate)
spin_unlock_irqrestore(&s->lock, flags);
}
static int trans_ac3(struct cm_state *s, void *dest, const char *source, int size)
static int trans_ac3(struct cm_state *s, void *dest, const char __user *source, int size)
{
int i = size / 2;
unsigned long data;
unsigned short data16;
unsigned long *dst = (unsigned long *) dest;
unsigned short *src = (unsigned short *)source;
unsigned short __user *src = (unsigned short __user *)source;
int err;
do {
......@@ -1639,6 +1639,8 @@ static int mixer_ioctl(struct cm_state *s, unsigned int cmd, unsigned long arg)
unsigned long flags;
int i, val, j;
unsigned char l, r, rl, rr;
void __user *argp = (void __user *)arg;
int __user *p = argp;
VALIDATE_STATE(s);
if (cmd == SOUND_MIXER_INFO) {
......@@ -1647,7 +1649,7 @@ static int mixer_ioctl(struct cm_state *s, unsigned int cmd, unsigned long arg)
strlcpy(info.id, "cmpci", sizeof(info.id));
strlcpy(info.name, "C-Media PCI", sizeof(info.name));
info.modify_counter = s->mix.modcnt;
if (copy_to_user((void *)arg, &info, sizeof(info)))
if (copy_to_user(argp, &info, sizeof(info)))
return -EFAULT;
return 0;
}
......@@ -1656,50 +1658,50 @@ static int mixer_ioctl(struct cm_state *s, unsigned int cmd, unsigned long arg)
memset(&info, 0, sizeof(info));
strlcpy(info.id, "cmpci", sizeof(info.id));
strlcpy(info.name, "C-Media cmpci", sizeof(info.name));
if (copy_to_user((void *)arg, &info, sizeof(info)))
if (copy_to_user(argp, &info, sizeof(info)))
return -EFAULT;
return 0;
}
if (cmd == OSS_GETVERSION)
return put_user(SOUND_VERSION, (int *)arg);
return put_user(SOUND_VERSION, p);
if (_IOC_TYPE(cmd) != 'M' || _SIOC_SIZE(cmd) != sizeof(int))
return -EINVAL;
if (_SIOC_DIR(cmd) == _SIOC_READ) {
switch (_IOC_NR(cmd)) {
case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */
val = mixer_recmask(s);
return put_user(val, (int *)arg);
return put_user(val, p);
case SOUND_MIXER_OUTSRC: /* Arg contains a bit for each recording source */
val = mixer_outmask(s);
return put_user(val, (int *)arg);
return put_user(val, p);
case SOUND_MIXER_DEVMASK: /* Arg contains a bit for each supported device */
for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
if (mixtable[i].type)
val |= 1 << i;
return put_user(val, (int *)arg);
return put_user(val, p);
case SOUND_MIXER_RECMASK: /* Arg contains a bit for each supported recording source */
for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
if (mixtable[i].rec)
val |= 1 << i;
return put_user(val, (int *)arg);
return put_user(val, p);
case SOUND_MIXER_OUTMASK: /* Arg contains a bit for each supported recording source */
for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
if (mixtable[i].play)
val |= 1 << i;
return put_user(val, (int *)arg);
return put_user(val, p);
case SOUND_MIXER_STEREODEVS: /* Mixer channels supporting stereo */
for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
if (mixtable[i].type && mixtable[i].type != MT_4MUTEMONO)
val |= 1 << i;
return put_user(val, (int *)arg);
return put_user(val, p);
case SOUND_MIXER_CAPS:
return put_user(0, (int *)arg);
return put_user(0, p);
default:
i = _IOC_NR(cmd);
......@@ -1707,7 +1709,7 @@ static int mixer_ioctl(struct cm_state *s, unsigned int cmd, unsigned long arg)
return -EINVAL;
if (!volidx[i])
return -EINVAL;
return put_user(s->mix.vol[volidx[i]-1], (int *)arg);
return put_user(s->mix.vol[volidx[i]-1], p);
}
}
if (_SIOC_DIR(cmd) != (_SIOC_READ|_SIOC_WRITE))
......@@ -1715,7 +1717,7 @@ static int mixer_ioctl(struct cm_state *s, unsigned int cmd, unsigned long arg)
s->mix.modcnt++;
switch (_IOC_NR(cmd)) {
case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */
if (get_user(val, (int *)arg))
if (get_user(val, p))
return -EFAULT;
i = generic_hweight32(val);
for (j = i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
......@@ -1734,7 +1736,7 @@ static int mixer_ioctl(struct cm_state *s, unsigned int cmd, unsigned long arg)
return 0;
case SOUND_MIXER_OUTSRC: /* Arg contains a bit for each recording source */
if (get_user(val, (int *)arg))
if (get_user(val, p))
return -EFAULT;
for (j = i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
if (!(val & (1 << i)))
......@@ -1754,7 +1756,7 @@ static int mixer_ioctl(struct cm_state *s, unsigned int cmd, unsigned long arg)
i = _IOC_NR(cmd);
if (i >= SOUND_MIXER_NRDEVICES || !mixtable[i].type)
return -EINVAL;
if (get_user(val, (int *)arg))
if (get_user(val, p))
return -EFAULT;
l = val & 0xff;
r = (val >> 8) & 0xff;
......@@ -1829,7 +1831,7 @@ static int mixer_ioctl(struct cm_state *s, unsigned int cmd, unsigned long arg)
if (!volidx[i])
return -EINVAL;
s->mix.vol[volidx[i]-1] = val;
return put_user(s->mix.vol[volidx[i]-1], (int *)arg);
return put_user(s->mix.vol[volidx[i]-1], p);
}
}
......@@ -1914,7 +1916,7 @@ static int drain_dac(struct cm_state *s, int nonblock)
/* --------------------------------------------------------------------- */
static ssize_t cm_read(struct file *file, char *buffer, size_t count, loff_t *ppos)
static ssize_t cm_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
{
struct cm_state *s = (struct cm_state *)file->private_data;
DECLARE_WAITQUEUE(wait, current);
......@@ -1975,11 +1977,11 @@ static ssize_t cm_read(struct file *file, char *buffer, size_t count, loff_t *pp
}
if (s->status & DO_BIGENDIAN_R) {
int i, err;
unsigned char *src, *dst;
unsigned char *src;
char __user *dst = buffer;
unsigned char data[2];
src = (unsigned char *) (s->dma_adc.rawbuf + swptr);
dst = (unsigned char *) buffer;
// copy left/right sample at one time
for (i = 0; i < cnt / 2; i++) {
data[0] = src[1];
......@@ -2016,7 +2018,7 @@ static ssize_t cm_read(struct file *file, char *buffer, size_t count, loff_t *pp
return ret;
}
static ssize_t cm_write(struct file *file, const char *buffer, size_t count, loff_t *ppos)
static ssize_t cm_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
{
struct cm_state *s = (struct cm_state *)file->private_data;
DECLARE_WAITQUEUE(wait, current);
......@@ -2116,10 +2118,10 @@ static ssize_t cm_write(struct file *file, const char *buffer, size_t count, lof
swptr = (swptr + 2 * cnt) % s->dma_dac.dmasize;
} else if ((s->status & DO_DUAL_DAC) && (s->status & DO_BIGENDIAN_W)) {
int i, err;
unsigned char *src, *dst0, *dst1;
const char __user *src = buffer;
unsigned char *dst0, *dst1;
unsigned char data[8];
src = (unsigned char *) buffer;
dst0 = (unsigned char *) (s->dma_dac.rawbuf + swptr);
dst1 = (unsigned char *) (s->dma_adc.rawbuf + swptr);
// copy left/right sample at one time
......@@ -2170,9 +2172,9 @@ static ssize_t cm_write(struct file *file, const char *buffer, size_t count, lof
swptr = (swptr + cnt) % s->dma_dac.dmasize;
} else if (s->status & DO_DUAL_DAC) {
int i, err;
unsigned long *src, *dst0, *dst1;
unsigned long __user *src = (unsigned long __user *) buffer;
unsigned long *dst0, *dst1;
src = (unsigned long *) buffer;
dst0 = (unsigned long *) (s->dma_dac.rawbuf + swptr);
dst1 = (unsigned long *) (s->dma_adc.rawbuf + swptr);
// copy left/right sample at one time
......@@ -2189,10 +2191,10 @@ static ssize_t cm_write(struct file *file, const char *buffer, size_t count, lof
swptr = (swptr + cnt) % s->dma_dac.dmasize;
} else if (s->status & DO_BIGENDIAN_W) {
int i, err;
unsigned char *src, *dst;
const char __user *src = buffer;
unsigned char *dst;
unsigned char data[2];
src = (unsigned char *) buffer;
dst = (unsigned char *) (s->dma_dac.rawbuf + swptr);
// swap hi/lo bytes for each sample
for (i = 0; i < cnt / 2; i++) {
......@@ -2330,13 +2332,15 @@ static int cm_ioctl(struct inode *inode, struct file *file, unsigned int cmd, un
count_info cinfo;
int val, mapped, ret;
unsigned char fmtm, fmtd;
void __user *argp = (void __user *)arg;
int __user *p = argp;
VALIDATE_STATE(s);
mapped = ((file->f_mode & FMODE_WRITE) && s->dma_dac.mapped) ||
((file->f_mode & FMODE_READ) && s->dma_adc.mapped);
switch (cmd) {
case OSS_GETVERSION:
return put_user(SOUND_VERSION, (int *)arg);
return put_user(SOUND_VERSION, p);
case SNDCTL_DSP_SYNC:
if (file->f_mode & FMODE_WRITE)
......@@ -2347,7 +2351,7 @@ static int cm_ioctl(struct inode *inode, struct file *file, unsigned int cmd, un
return 0;
case SNDCTL_DSP_GETCAPS:
return put_user(DSP_CAP_DUPLEX | DSP_CAP_REALTIME | DSP_CAP_TRIGGER | DSP_CAP_MMAP | DSP_CAP_BIND, (int *)arg);
return put_user(DSP_CAP_DUPLEX | DSP_CAP_REALTIME | DSP_CAP_TRIGGER | DSP_CAP_MMAP | DSP_CAP_BIND, p);
case SNDCTL_DSP_RESET:
if (file->f_mode & FMODE_WRITE) {
......@@ -2365,7 +2369,7 @@ static int cm_ioctl(struct inode *inode, struct file *file, unsigned int cmd, un
return 0;
case SNDCTL_DSP_SPEED:
if (get_user(val, (int *)arg))
if (get_user(val, p))
return -EFAULT;
if (val >= 0) {
if (file->f_mode & FMODE_READ) {
......@@ -2383,10 +2387,10 @@ static int cm_ioctl(struct inode *inode, struct file *file, unsigned int cmd, un
set_dac_rate(s, val);
}
}
return put_user((file->f_mode & FMODE_READ) ? s->rateadc : s->ratedac, (int *)arg);
return put_user((file->f_mode & FMODE_READ) ? s->rateadc : s->ratedac, p);
case SNDCTL_DSP_STEREO:
if (get_user(val, (int *)arg))
if (get_user(val, p))
return -EFAULT;
fmtd = 0;
fmtm = ~0;
......@@ -2417,7 +2421,7 @@ static int cm_ioctl(struct inode *inode, struct file *file, unsigned int cmd, un
return 0;
case SNDCTL_DSP_CHANNELS:
if (get_user(val, (int *)arg))
if (get_user(val, p))
return -EFAULT;
if (val != 0) {
fmtd = 0;
......@@ -2449,18 +2453,18 @@ static int cm_ioctl(struct inode *inode, struct file *file, unsigned int cmd, un
if ((s->capability & CAN_MULTI_CH)
&& (file->f_mode & FMODE_WRITE)) {
val = set_dac_channels(s, val);
return put_user(val, (int *)arg);
return put_user(val, p);
}
}
return put_user((s->fmt & ((file->f_mode & FMODE_READ) ? (CM_CFMT_STEREO << CM_CFMT_ADCSHIFT)
: (CM_CFMT_STEREO << CM_CFMT_DACSHIFT))) ? 2 : 1, (int *)arg);
: (CM_CFMT_STEREO << CM_CFMT_DACSHIFT))) ? 2 : 1, p);
case SNDCTL_DSP_GETFMTS: /* Returns a mask */
return put_user(AFMT_S16_BE|AFMT_S16_LE|AFMT_U8|
((s->capability & CAN_AC3) ? AFMT_AC3 : 0), (int *)arg);
((s->capability & CAN_AC3) ? AFMT_AC3 : 0), p);
case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/
if (get_user(val, (int *)arg))
if (get_user(val, p))
return -EFAULT;
if (val != AFMT_QUERY) {
fmtd = 0;
......@@ -2503,9 +2507,9 @@ static int cm_ioctl(struct inode *inode, struct file *file, unsigned int cmd, un
}
set_fmt(s, fmtm, fmtd);
}
if (s->status & DO_AC3) return put_user(AFMT_AC3, (int *)arg);
if (s->status & DO_AC3) return put_user(AFMT_AC3, p);
return put_user((s->fmt & ((file->f_mode & FMODE_READ) ? (CM_CFMT_16BIT << CM_CFMT_ADCSHIFT)
: (CM_CFMT_16BIT << CM_CFMT_DACSHIFT))) ? val : AFMT_U8, (int *)arg);
: (CM_CFMT_16BIT << CM_CFMT_DACSHIFT))) ? val : AFMT_U8, p);
case SNDCTL_DSP_POST:
return 0;
......@@ -2517,16 +2521,16 @@ static int cm_ioctl(struct inode *inode, struct file *file, unsigned int cmd, un
(s->enable & ENDAC) &&
(s->enable & ENADC))
val |= PCM_ENABLE_OUTPUT;
return put_user(val, (int *)arg);
return put_user(val, p);
}
if (file->f_mode & FMODE_READ && s->enable & ENADC)
val |= PCM_ENABLE_INPUT;
if (file->f_mode & FMODE_WRITE && s->enable & ENDAC)
val |= PCM_ENABLE_OUTPUT;
return put_user(val, (int *)arg);
return put_user(val, p);
case SNDCTL_DSP_SETTRIGGER:
if (get_user(val, (int *)arg))
if (get_user(val, p))
return -EFAULT;
if (file->f_mode & FMODE_READ) {
if (val & PCM_ENABLE_INPUT) {
......@@ -2568,7 +2572,7 @@ static int cm_ioctl(struct inode *inode, struct file *file, unsigned int cmd, un
abinfo.fragstotal = s->dma_dac.numfrag;
abinfo.fragments = abinfo.bytes >> s->dma_dac.fragshift;
spin_unlock_irqrestore(&s->lock, flags);
return copy_to_user((void *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
case SNDCTL_DSP_GETISPACE:
if (!(file->f_mode & FMODE_READ))
......@@ -2582,7 +2586,7 @@ static int cm_ioctl(struct inode *inode, struct file *file, unsigned int cmd, un
abinfo.fragstotal = s->dma_adc.numfrag;
abinfo.fragments = abinfo.bytes >> s->dma_adc.fragshift;
spin_unlock_irqrestore(&s->lock, flags);
return copy_to_user((void *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
case SNDCTL_DSP_NONBLOCK:
file->f_flags |= O_NONBLOCK;
......@@ -2595,7 +2599,7 @@ static int cm_ioctl(struct inode *inode, struct file *file, unsigned int cmd, un
cm_update_ptr(s);
val = s->dma_dac.count;
spin_unlock_irqrestore(&s->lock, flags);
return put_user(val, (int *)arg);
return put_user(val, p);
case SNDCTL_DSP_GETIPTR:
if (!(file->f_mode & FMODE_READ))
......@@ -2608,7 +2612,7 @@ static int cm_ioctl(struct inode *inode, struct file *file, unsigned int cmd, un
if (s->dma_adc.mapped)
s->dma_adc.count &= s->dma_adc.fragsize-1;
spin_unlock_irqrestore(&s->lock, flags);
return copy_to_user((void *)arg, &cinfo, sizeof(cinfo)) ? -EFAULT : 0;
return copy_to_user(argp, &cinfo, sizeof(cinfo)) ? -EFAULT : 0;
case SNDCTL_DSP_GETOPTR:
if (!(file->f_mode & FMODE_WRITE))
......@@ -2625,7 +2629,7 @@ static int cm_ioctl(struct inode *inode, struct file *file, unsigned int cmd, un
s->dma_adc.count &= s->dma_adc.fragsize-1;
}
spin_unlock_irqrestore(&s->lock, flags);
return copy_to_user((void *)arg, &cinfo, sizeof(cinfo)) ? -EFAULT : 0;
return copy_to_user(argp, &cinfo, sizeof(cinfo)) ? -EFAULT : 0;
case SNDCTL_DSP_GETBLKSIZE:
if (file->f_mode & FMODE_WRITE) {
......@@ -2634,16 +2638,16 @@ static int cm_ioctl(struct inode *inode, struct file *file, unsigned int cmd, un
if (s->status & DO_DUAL_DAC) {
if ((val = prog_dmabuf(s, 1)))
return val;
return put_user(2 * s->dma_dac.fragsize, (int *)arg);
return put_user(2 * s->dma_dac.fragsize, p);
}
return put_user(s->dma_dac.fragsize, (int *)arg);
return put_user(s->dma_dac.fragsize, p);
}
if ((val = prog_dmabuf(s, 1)))
return val;
return put_user(s->dma_adc.fragsize, (int *)arg);
return put_user(s->dma_adc.fragsize, p);
case SNDCTL_DSP_SETFRAGMENT:
if (get_user(val, (int *)arg))
if (get_user(val, p))
return -EFAULT;
if (file->f_mode & FMODE_READ) {
s->dma_adc.ossfragshift = val & 0xffff;
......@@ -2675,7 +2679,7 @@ static int cm_ioctl(struct inode *inode, struct file *file, unsigned int cmd, un
if ((file->f_mode & FMODE_READ && s->dma_adc.subdivision) ||
(file->f_mode & FMODE_WRITE && s->dma_dac.subdivision))
return -EINVAL;
if (get_user(val, (int *)arg))
if (get_user(val, p))
return -EFAULT;
if (val != 1 && val != 2 && val != 4)
return -EINVAL;
......@@ -2689,22 +2693,22 @@ static int cm_ioctl(struct inode *inode, struct file *file, unsigned int cmd, un
return 0;
case SOUND_PCM_READ_RATE:
return put_user((file->f_mode & FMODE_READ) ? s->rateadc : s->ratedac, (int *)arg);
return put_user((file->f_mode & FMODE_READ) ? s->rateadc : s->ratedac, p);
case SOUND_PCM_READ_CHANNELS:
return put_user((s->fmt & ((file->f_mode & FMODE_READ) ? (CM_CFMT_STEREO << CM_CFMT_ADCSHIFT) : (CM_CFMT_STEREO << CM_CFMT_DACSHIFT))) ? 2 : 1, (int *)arg);
return put_user((s->fmt & ((file->f_mode & FMODE_READ) ? (CM_CFMT_STEREO << CM_CFMT_ADCSHIFT) : (CM_CFMT_STEREO << CM_CFMT_DACSHIFT))) ? 2 : 1, p);
case SOUND_PCM_READ_BITS:
return put_user((s->fmt & ((file->f_mode & FMODE_READ) ? (CM_CFMT_16BIT << CM_CFMT_ADCSHIFT) : (CM_CFMT_16BIT << CM_CFMT_DACSHIFT))) ? 16 : 8, (int *)arg);
return put_user((s->fmt & ((file->f_mode & FMODE_READ) ? (CM_CFMT_16BIT << CM_CFMT_ADCSHIFT) : (CM_CFMT_16BIT << CM_CFMT_DACSHIFT))) ? 16 : 8, p);
case SOUND_PCM_READ_FILTER:
return put_user((file->f_mode & FMODE_READ) ? s->rateadc : s->ratedac, (int *)arg);
return put_user((file->f_mode & FMODE_READ) ? s->rateadc : s->ratedac, p);
case SNDCTL_DSP_GETCHANNELMASK:
return put_user(DSP_BIND_FRONT|DSP_BIND_SURR|DSP_BIND_CENTER_LFE|DSP_BIND_SPDIF, (int *)arg);
return put_user(DSP_BIND_FRONT|DSP_BIND_SURR|DSP_BIND_CENTER_LFE|DSP_BIND_SPDIF, p);
case SNDCTL_DSP_BIND_CHANNEL:
if (get_user(val, (int *)arg))
if (get_user(val, p))
return -EFAULT;
if (val == DSP_BIND_QUERY) {
val = DSP_BIND_FRONT;
......@@ -2757,7 +2761,7 @@ static int cm_ioctl(struct inode *inode, struct file *file, unsigned int cmd, un
}
}
}
return put_user(val, (int *)arg);
return put_user(val, p);
case SOUND_PCM_WRITE_FILTER:
case SNDCTL_DSP_MAPINBUF:
......@@ -2765,47 +2769,47 @@ static int cm_ioctl(struct inode *inode, struct file *file, unsigned int cmd, un
case SNDCTL_DSP_SETSYNCRO:
return -EINVAL;
case SNDCTL_SPDIF_COPYRIGHT:
if (get_user(val, (int *)arg))
if (get_user(val, p))
return -EFAULT;
set_spdif_copyright(s, val);
return 0;
case SNDCTL_SPDIF_LOOP:
if (get_user(val, (int *)arg))
if (get_user(val, p))
return -EFAULT;
set_spdif_loop(s, val);
return 0;
case SNDCTL_SPDIF_MONITOR:
if (get_user(val, (int *)arg))
if (get_user(val, p))
return -EFAULT;
set_spdif_monitor(s, val);
return 0;
case SNDCTL_SPDIF_LEVEL:
if (get_user(val, (int *)arg))
if (get_user(val, p))
return -EFAULT;
set_spdifout_level(s, val);
return 0;
case SNDCTL_SPDIF_INV:
if (get_user(val, (int *)arg))
if (get_user(val, p))
return -EFAULT;
set_spdifin_inverse(s, val);
return 0;
case SNDCTL_SPDIF_SEL2:
if (get_user(val, (int *)arg))
if (get_user(val, p))
return -EFAULT;
set_spdifin_channel2(s, val);
return 0;
case SNDCTL_SPDIF_VALID:
if (get_user(val, (int *)arg))
if (get_user(val, p))
return -EFAULT;
set_spdifin_valid(s, val);
return 0;
case SNDCTL_SPDIFOUT:
if (get_user(val, (int *)arg))
if (get_user(val, p))
return -EFAULT;
set_spdifout(s, val ? s->ratedac : 0);
return 0;
case SNDCTL_SPDIFIN:
if (get_user(val, (int *)arg))
if (get_user(val, p))
return -EFAULT;
set_spdifin(s, val ? s->rateadc : 0);
return 0;
......
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