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Subject[PATCH 10/14] media: wl128x-radio: simplify fmc_prepare/fmc_release
Date
From: Sebastian Reichel <sebastian.reichel@collabora.com>

Remove unused return code from fmc_prepare() and fmc_release() to
simplify the code a bit.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
drivers/media/radio/wl128x/fmdrv_common.c | 26 +++++++++--------------
drivers/media/radio/wl128x/fmdrv_common.h | 4 ++--
drivers/media/radio/wl128x/fmdrv_v4l2.c | 12 ++---------
3 files changed, 14 insertions(+), 28 deletions(-)

diff --git a/drivers/media/radio/wl128x/fmdrv_common.c b/drivers/media/radio/wl128x/fmdrv_common.c
index d584ca970556..473ec5738a11 100644
--- a/drivers/media/radio/wl128x/fmdrv_common.c
+++ b/drivers/media/radio/wl128x/fmdrv_common.c
@@ -1225,7 +1225,8 @@ static int fm_power_down(struct fmdev *fmdev)
if (ret < 0)
return ret;

- return fmc_release(fmdev);
+ fmc_release(fmdev);
+ return 0;
}

/* Reads init command from FM firmware file and loads to the chip */
@@ -1310,7 +1311,7 @@ static int fm_power_up(struct fmdev *fmdev, u8 mode)
{
u16 payload;
__be16 asic_id, asic_ver;
- int resp_len, ret;
+ int resp_len, ret = 0;
u8 fw_name[50];

if (mode >= FM_MODE_ENTRY_MAX) {
@@ -1322,11 +1323,7 @@ static int fm_power_up(struct fmdev *fmdev, u8 mode)
* Initialize FM common module. FM GPIO toggling is
* taken care in Shared Transport driver.
*/
- ret = fmc_prepare(fmdev);
- if (ret < 0) {
- fmerr("Unable to prepare FM Common\n");
- return ret;
- }
+ fmc_prepare(fmdev);

payload = FM_ENABLE;
if (fmc_send_cmd(fmdev, FM_POWER_MODE, REG_WR, &payload,
@@ -1366,7 +1363,8 @@ static int fm_power_up(struct fmdev *fmdev, u8 mode)
} else
return ret;
rel:
- return fmc_release(fmdev);
+ fmc_release(fmdev);
+ return ret;
}

/* Set FM Modes(TX, RX, OFF) */
@@ -1479,14 +1477,13 @@ static void fm_st_reg_comp_cb(void *arg, int data)
* This function will be called from FM V4L2 open function.
* Register with ST driver and initialize driver data.
*/
-int fmc_prepare(struct fmdev *fmdev)
+void fmc_prepare(struct fmdev *fmdev)
{
static struct st_proto_s fm_st_proto;
- int ret;

if (test_bit(FM_CORE_READY, &fmdev->flag)) {
fmdbg("FM Core is already up\n");
- return 0;
+ return;
}

memset(&fm_st_proto, 0, sizeof(fm_st_proto));
@@ -1571,22 +1568,20 @@ int fmc_prepare(struct fmdev *fmdev)

fm_rx_reset_station_info(fmdev);
set_bit(FM_CORE_READY, &fmdev->flag);
-
- return ret;
}

/*
* This function will be called from FM V4L2 release function.
* Unregister from ST driver.
*/
-int fmc_release(struct fmdev *fmdev)
+void fmc_release(struct fmdev *fmdev)
{
static struct st_proto_s fm_st_proto;
int ret;

if (!test_bit(FM_CORE_READY, &fmdev->flag)) {
fmdbg("FM Core is already down\n");
- return 0;
+ return;
}
/* Service pending read */
wake_up_interruptible(&fmdev->rx.rds.read_queue);
@@ -1611,7 +1606,6 @@ int fmc_release(struct fmdev *fmdev)
fmdbg("Successfully unregistered from ST\n");

clear_bit(FM_CORE_READY, &fmdev->flag);
- return ret;
}

static int wl128x_fm_probe(struct platform_device *pdev)
diff --git a/drivers/media/radio/wl128x/fmdrv_common.h b/drivers/media/radio/wl128x/fmdrv_common.h
index 552e22ea6bf3..47a8f0061eb0 100644
--- a/drivers/media/radio/wl128x/fmdrv_common.h
+++ b/drivers/media/radio/wl128x/fmdrv_common.h
@@ -364,8 +364,8 @@ struct fm_event_msg_hdr {
#define FM_TX_ANT_IMP_500 2

/* Functions exported by FM common sub-module */
-int fmc_prepare(struct fmdev *);
-int fmc_release(struct fmdev *);
+void fmc_prepare(struct fmdev *);
+void fmc_release(struct fmdev *);

void fmc_update_region_info(struct fmdev *, u8);
int fmc_send_cmd(struct fmdev *, u8, u16,
diff --git a/drivers/media/radio/wl128x/fmdrv_v4l2.c b/drivers/media/radio/wl128x/fmdrv_v4l2.c
index affa9e199dfb..ab6384e412f9 100644
--- a/drivers/media/radio/wl128x/fmdrv_v4l2.c
+++ b/drivers/media/radio/wl128x/fmdrv_v4l2.c
@@ -133,11 +133,7 @@ static int fm_v4l2_fops_open(struct file *file)

if (mutex_lock_interruptible(&fmdev->mutex))
return -ERESTARTSYS;
- ret = fmc_prepare(fmdev);
- if (ret < 0) {
- fmerr("Unable to prepare FM CORE\n");
- goto open_unlock;
- }
+ fmc_prepare(fmdev);

fmdbg("Load FM RX firmware..\n");

@@ -171,11 +167,7 @@ static int fm_v4l2_fops_release(struct file *file)
goto release_unlock;
}

- ret = fmc_release(fmdev);
- if (ret < 0) {
- fmerr("FM CORE release failed\n");
- goto release_unlock;
- }
+ fmc_release(fmdev);
fmdev->radio_disconnected = 0;

release_unlock:
--
2.19.2
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