OpenE2K
/
linux
6
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

ALSA: sb: Proper endian notations 

The data types defined in SB CSP driver code are all in little-endian,
hence the proper type like __le32 should be used.

Spotted by sparse, a warning like:
  sound/isa/sb/sb16_csp.c:330:14: warning: cast to restricted __le32

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2018-07-25 23:24:14 +02:00
parent 7e49aadf64
commit 13e9a3edb4
1 changed files with 15 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
sound/isa/sb/sb16_csp.c
View File

@ -60,18 +60,18 @@ MODULE_FIRMWARE("sb16/ima_adpcm_capture.csp");
* RIFF data format
*/
struct riff_header {
__u32 name;
__u32 len;
__le32 name;
__le32 len;
};
struct desc_header {
struct riff_header info;
__u16 func_nr;
__u16 VOC_type;
__u16 flags_play_rec;
__u16 flags_16bit_8bit;
__u16 flags_stereo_mono;
__u16 flags_rates;
__le16 func_nr;
__le16 VOC_type;
__le16 flags_play_rec;
__le16 flags_16bit_8bit;
__le16 flags_stereo_mono;
__le16 flags_rates;
};
/*
@ -314,7 +314,7 @@ static int snd_sb_csp_riff_load(struct snd_sb_csp * p,
unsigned short func_nr = 0;
struct riff_header file_h, item_h, code_h;
__u32 item_type;
__le32 item_type;
struct desc_header funcdesc_h;
unsigned long flags;
@ -326,7 +326,7 @@ static int snd_sb_csp_riff_load(struct snd_sb_csp * p,
if (copy_from_user(&file_h, data_ptr, sizeof(file_h)))
return -EFAULT;
if ((file_h.name != RIFF_HEADER) ||
if ((le32_to_cpu(file_h.name) != RIFF_HEADER) ||
(le32_to_cpu(file_h.len) >= SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE - sizeof(file_h))) {
snd_printd("%s: Invalid RIFF header\n", __func__);
return -EINVAL;
@ -336,7 +336,7 @@ static int snd_sb_csp_riff_load(struct snd_sb_csp * p,
if (copy_from_user(&item_type, data_ptr, sizeof(item_type)))
return -EFAULT;
if (item_type != CSP__HEADER) {
if (le32_to_cpu(item_type) != CSP__HEADER) {
snd_printd("%s: Invalid RIFF file type\n", __func__);
return -EINVAL;
}
@ -346,12 +346,12 @@ static int snd_sb_csp_riff_load(struct snd_sb_csp * p,
if (copy_from_user(&item_h, data_ptr, sizeof(item_h)))
return -EFAULT;
data_ptr += sizeof(item_h);
if (item_h.name != LIST_HEADER)
if (le32_to_cpu(item_h.name) != LIST_HEADER)
continue;
if (copy_from_user(&item_type, data_ptr, sizeof(item_type)))
return -EFAULT;
switch (item_type) {
switch (le32_to_cpu(item_type)) {
case FUNC_HEADER:
if (copy_from_user(&funcdesc_h, data_ptr + sizeof(item_type), sizeof(funcdesc_h)))
return -EFAULT;
@ -378,7 +378,7 @@ static int snd_sb_csp_riff_load(struct snd_sb_csp * p,
return -EFAULT;
/* init microcode blocks */
if (code_h.name != INIT_HEADER)
if (le32_to_cpu(code_h.name) != INIT_HEADER)
break;
data_ptr += sizeof(code_h);
err = snd_sb_csp_load_user(p, data_ptr, le32_to_cpu(code_h.len),
@ -391,7 +391,7 @@ static int snd_sb_csp_riff_load(struct snd_sb_csp * p,
if (copy_from_user(&code_h, data_ptr, sizeof(code_h)))
return -EFAULT;
if (code_h.name != MAIN_HEADER) {
if (le32_to_cpu(code_h.name) != MAIN_HEADER) {
snd_printd("%s: Missing 'main' microcode\n", __func__);
return -EINVAL;
}