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[media] wl128x: fmdrv_common: fix signedness bugs

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Message-Id: <1322820073-19347-2-git-send-email-xi.wang@gmail.com>

The error handling with (ret < 0) didn't work where ret is a u32.
Use int instead.  To be consistent we also change the functions to
return an int.

Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Xi Wang 2011-12-02 06:01:11 -03:00 committed by Mauro Carvalho Chehab
parent 27d3e36609
commit a61278037b
2 changed files with 42 additions and 44 deletions
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58
drivers/media/radio/wl128x/fmdrv_common.c
View file

@ -387,7 +387,7 @@ static void send_tasklet(unsigned long arg)
* Queues FM Channel-8 packet to FM TX queue and schedules FM TX tasklet for
* transmission
*/
static u32 fm_send_cmd(struct fmdev *fmdev, u8 fm_op, u16 type, void *payload,
static int fm_send_cmd(struct fmdev *fmdev, u8 fm_op, u16 type, void *payload,
int payload_len, struct completion *wait_completion)
{
struct sk_buff *skb;
@ -456,13 +456,13 @@ static u32 fm_send_cmd(struct fmdev *fmdev, u8 fm_op, u16 type, void *payload,
}
/* Sends FM Channel-8 command to the chip and waits for the response */
u32 fmc_send_cmd(struct fmdev *fmdev, u8 fm_op, u16 type, void *payload,
int fmc_send_cmd(struct fmdev *fmdev, u8 fm_op, u16 type, void *payload,
unsigned int payload_len, void *response, int *response_len)
{
struct sk_buff *skb;
struct fm_event_msg_hdr *evt_hdr;
unsigned long flags;
u32 ret;
int ret;
init_completion(&fmdev->maintask_comp);
ret = fm_send_cmd(fmdev, fm_op, type, payload, payload_len,
@ -470,8 +470,8 @@ u32 fmc_send_cmd(struct fmdev *fmdev, u8 fm_op, u16 type, void *payload,
if (ret)
return ret;
ret = wait_for_completion_timeout(&fmdev->maintask_comp, FM_DRV_TX_TIMEOUT);
if (!ret) {
if (!wait_for_completion_timeout(&fmdev->maintask_comp,
FM_DRV_TX_TIMEOUT)) {
fmerr("Timeout(%d sec),didn't get reg"
"completion signal from RX tasklet\n",
jiffies_to_msecs(FM_DRV_TX_TIMEOUT) / 1000);
@ -508,7 +508,7 @@ u32 fmc_send_cmd(struct fmdev *fmdev, u8 fm_op, u16 type, void *payload,
}
/* --- Helper functions used in FM interrupt handlers ---*/
static inline u32 check_cmdresp_status(struct fmdev *fmdev,
static inline int check_cmdresp_status(struct fmdev *fmdev,
struct sk_buff **skb)
{
struct fm_event_msg_hdr *fm_evt_hdr;
@ -1058,7 +1058,7 @@ static void fm_irq_handle_intmsk_cmd_resp(struct fmdev *fmdev)
}
/* Returns availability of RDS data in internel buffer */
u32 fmc_is_rds_data_available(struct fmdev *fmdev, struct file *file,
int fmc_is_rds_data_available(struct fmdev *fmdev, struct file *file,
struct poll_table_struct *pts)
{
poll_wait(file, &fmdev->rx.rds.read_queue, pts);
@ -1069,7 +1069,7 @@ u32 fmc_is_rds_data_available(struct fmdev *fmdev, struct file *file,
}
/* Copies RDS data from internal buffer to user buffer */
u32 fmc_transfer_rds_from_internal_buff(struct fmdev *fmdev, struct file *file,
int fmc_transfer_rds_from_internal_buff(struct fmdev *fmdev, struct file *file,
u8 __user *buf, size_t count)
{
u32 block_count;
@ -1113,7 +1113,7 @@ u32 fmc_transfer_rds_from_internal_buff(struct fmdev *fmdev, struct file *file,
return ret;
}
u32 fmc_set_freq(struct fmdev *fmdev, u32 freq_to_set)
int fmc_set_freq(struct fmdev *fmdev, u32 freq_to_set)
{
switch (fmdev->curr_fmmode) {
case FM_MODE_RX:
@ -1127,7 +1127,7 @@ u32 fmc_set_freq(struct fmdev *fmdev, u32 freq_to_set)
}
}
u32 fmc_get_freq(struct fmdev *fmdev, u32 *cur_tuned_frq)
int fmc_get_freq(struct fmdev *fmdev, u32 *cur_tuned_frq)
{
if (fmdev->rx.freq == FM_UNDEFINED_FREQ) {
fmerr("RX frequency is not set\n");
@ -1153,7 +1153,7 @@ u32 fmc_get_freq(struct fmdev *fmdev, u32 *cur_tuned_frq)
}
u32 fmc_set_region(struct fmdev *fmdev, u8 region_to_set)
int fmc_set_region(struct fmdev *fmdev, u8 region_to_set)
{
switch (fmdev->curr_fmmode) {
case FM_MODE_RX:
@ -1167,7 +1167,7 @@ u32 fmc_set_region(struct fmdev *fmdev, u8 region_to_set)
}
}
u32 fmc_set_mute_mode(struct fmdev *fmdev, u8 mute_mode_toset)
int fmc_set_mute_mode(struct fmdev *fmdev, u8 mute_mode_toset)
{
switch (fmdev->curr_fmmode) {
case FM_MODE_RX:
@ -1181,7 +1181,7 @@ u32 fmc_set_mute_mode(struct fmdev *fmdev, u8 mute_mode_toset)
}
}
u32 fmc_set_stereo_mono(struct fmdev *fmdev, u16 mode)
int fmc_set_stereo_mono(struct fmdev *fmdev, u16 mode)
{
switch (fmdev->curr_fmmode) {
case FM_MODE_RX:
@ -1195,7 +1195,7 @@ u32 fmc_set_stereo_mono(struct fmdev *fmdev, u16 mode)
}
}
u32 fmc_set_rds_mode(struct fmdev *fmdev, u8 rds_en_dis)
int fmc_set_rds_mode(struct fmdev *fmdev, u8 rds_en_dis)
{
switch (fmdev->curr_fmmode) {
case FM_MODE_RX:
@ -1210,10 +1210,10 @@ u32 fmc_set_rds_mode(struct fmdev *fmdev, u8 rds_en_dis)
}
/* Sends power off command to the chip */
static u32 fm_power_down(struct fmdev *fmdev)
static int fm_power_down(struct fmdev *fmdev)
{
u16 payload;
u32 ret;
int ret;
if (!test_bit(FM_CORE_READY, &fmdev->flag)) {
fmerr("FM core is not ready\n");
@ -1234,7 +1234,7 @@ static u32 fm_power_down(struct fmdev *fmdev)
}
/* Reads init command from FM firmware file and loads to the chip */
static u32 fm_download_firmware(struct fmdev *fmdev, const u8 *fw_name)
static int fm_download_firmware(struct fmdev *fmdev, const u8 *fw_name)
{
const struct firmware *fw_entry;
struct bts_header *fw_header;
@ -1299,7 +1299,7 @@ rel_fw:
}
/* Loads default RX configuration to the chip */
static u32 load_default_rx_configuration(struct fmdev *fmdev)
static int load_default_rx_configuration(struct fmdev *fmdev)
{
int ret;
@ -1311,7 +1311,7 @@ static u32 load_default_rx_configuration(struct fmdev *fmdev)
}
/* Does FM power on sequence */
static u32 fm_power_up(struct fmdev *fmdev, u8 mode)
static int fm_power_up(struct fmdev *fmdev, u8 mode)
{
u16 payload, asic_id, asic_ver;
int resp_len, ret;
@ -1374,7 +1374,7 @@ rel:
}
/* Set FM Modes(TX, RX, OFF) */
u32 fmc_set_mode(struct fmdev *fmdev, u8 fm_mode)
int fmc_set_mode(struct fmdev *fmdev, u8 fm_mode)
{
int ret = 0;
@ -1427,7 +1427,7 @@ u32 fmc_set_mode(struct fmdev *fmdev, u8 fm_mode)
}
/* Returns current FM mode (TX, RX, OFF) */
u32 fmc_get_mode(struct fmdev *fmdev, u8 *fmmode)
int fmc_get_mode(struct fmdev *fmdev, u8 *fmmode)
{
if (!test_bit(FM_CORE_READY, &fmdev->flag)) {
fmerr("FM core is not ready\n");
@ -1483,10 +1483,10 @@ static void fm_st_reg_comp_cb(void *arg, char data)
* This function will be called from FM V4L2 open function.
* Register with ST driver and initialize driver data.
*/
u32 fmc_prepare(struct fmdev *fmdev)
int fmc_prepare(struct fmdev *fmdev)
{
static struct st_proto_s fm_st_proto;
u32 ret;
int ret;
if (test_bit(FM_CORE_READY, &fmdev->flag)) {
fmdbg("FM Core is already up\n");
@ -1512,10 +1512,8 @@ u32 fmc_prepare(struct fmdev *fmdev)
fmdev->streg_cbdata = -EINPROGRESS;
fmdbg("%s waiting for ST reg completion signal\n", __func__);
ret = wait_for_completion_timeout(&wait_for_fmdrv_reg_comp,
FM_ST_REG_TIMEOUT);
if (!ret) {
if (!wait_for_completion_timeout(&wait_for_fmdrv_reg_comp,
FM_ST_REG_TIMEOUT)) {
fmerr("Timeout(%d sec), didn't get reg "
"completion signal from ST\n",
jiffies_to_msecs(FM_ST_REG_TIMEOUT) / 1000);
@ -1589,10 +1587,10 @@ u32 fmc_prepare(struct fmdev *fmdev)
* This function will be called from FM V4L2 release function.
* Unregister from ST driver.
*/
u32 fmc_release(struct fmdev *fmdev)
int fmc_release(struct fmdev *fmdev)
{
static struct st_proto_s fm_st_proto;
u32 ret;
int ret;
if (!test_bit(FM_CORE_READY, &fmdev->flag)) {
fmdbg("FM Core is already down\n");
@ -1631,7 +1629,7 @@ u32 fmc_release(struct fmdev *fmdev)
static int __init fm_drv_init(void)
{
struct fmdev *fmdev = NULL;
u32 ret = -ENOMEM;
int ret = -ENOMEM;
fmdbg("FM driver version %s\n", FM_DRV_VERSION);

28
drivers/media/radio/wl128x/fmdrv_common.h
View file

@ -368,27 +368,27 @@ struct fm_event_msg_hdr {
#define FM_TX_ANT_IMP_500 2
/* Functions exported by FM common sub-module */
u32 fmc_prepare(struct fmdev *);
u32 fmc_release(struct fmdev *);
int fmc_prepare(struct fmdev *);
int fmc_release(struct fmdev *);
void fmc_update_region_info(struct fmdev *, u8);
u32 fmc_send_cmd(struct fmdev *, u8, u16,
int fmc_send_cmd(struct fmdev *, u8, u16,
void *, unsigned int, void *, int *);
u32 fmc_is_rds_data_available(struct fmdev *, struct file *,
int fmc_is_rds_data_available(struct fmdev *, struct file *,
struct poll_table_struct *);
u32 fmc_transfer_rds_from_internal_buff(struct fmdev *, struct file *,
int fmc_transfer_rds_from_internal_buff(struct fmdev *, struct file *,
u8 __user *, size_t);
u32 fmc_set_freq(struct fmdev *, u32);
u32 fmc_set_mode(struct fmdev *, u8);
u32 fmc_set_region(struct fmdev *, u8);
u32 fmc_set_mute_mode(struct fmdev *, u8);
u32 fmc_set_stereo_mono(struct fmdev *, u16);
u32 fmc_set_rds_mode(struct fmdev *, u8);
int fmc_set_freq(struct fmdev *, u32);
int fmc_set_mode(struct fmdev *, u8);
int fmc_set_region(struct fmdev *, u8);
int fmc_set_mute_mode(struct fmdev *, u8);
int fmc_set_stereo_mono(struct fmdev *, u16);
int fmc_set_rds_mode(struct fmdev *, u8);
u32 fmc_get_freq(struct fmdev *, u32 *);
u32 fmc_get_region(struct fmdev *, u8 *);
u32 fmc_get_mode(struct fmdev *, u8 *);
int fmc_get_freq(struct fmdev *, u32 *);
int fmc_get_region(struct fmdev *, u8 *);
int fmc_get_mode(struct fmdev *, u8 *);
/*
* channel spacing