[media] drxd: use mutex instead of semaphore

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/dvb/frontends/drxd_hard.c b/drivers/media/dvb/frontends/drxd_hard.c
index 117df55..30a78af 100644 (file)
--- a/drivers/media/dvb/frontends/drxd_hard.c
+++ b/drivers/media/dvb/frontends/drxd_hard.c
@@ -132,7 +132,7 @@ struct drxd_state {
 
        int i2c_access;
        int init_done;
-       struct semaphore mutex;
+       struct mutex mutex;
 
        u8 chip_adr;
        u16 hi_cfg_timing_div;
@@ -998,7 +998,7 @@ static int HI_CfgCommand(struct drxd_state *state)
 {
        int status = 0;
 
-       down(&state->mutex);
+       mutex_lock(&state->mutex);
        Write16(state, HI_RA_RAM_SRV_CFG_KEY__A, HI_RA_RAM_SRV_RST_KEY_ACT, 0);
        Write16(state, HI_RA_RAM_SRV_CFG_DIV__A, state->hi_cfg_timing_div, 0);
        Write16(state, HI_RA_RAM_SRV_CFG_BDL__A, state->hi_cfg_bridge_delay, 0);
@@ -1013,7 +1013,7 @@ static int HI_CfgCommand(struct drxd_state *state)
                                 HI_RA_RAM_SRV_CMD_CONFIG, 0);
        else
                status = HI_Command(state, HI_RA_RAM_SRV_CMD_CONFIG, 0);
-       up(&state->mutex);
+       mutex_unlock(&state->mutex);
        return status;
 }
 
@@ -1029,12 +1029,12 @@ static int HI_ResetCommand(struct drxd_state *state)
 {
        int status;
 
-       down(&state->mutex);
+       mutex_lock(&state->mutex);
        status = Write16(state, HI_RA_RAM_SRV_RST_KEY__A,
                         HI_RA_RAM_SRV_RST_KEY_ACT, 0);
        if (status == 0)
                status = HI_Command(state, HI_RA_RAM_SRV_CMD_RESET, 0);
-       up(&state->mutex);
+       mutex_unlock(&state->mutex);
        msleep(1);
        return status;
 }
@@ -1066,7 +1066,7 @@ static int AtomicReadBlock(struct drxd_state *state,
        if ((!pData) || ((DataSize & 1) != 0))
                return -1;
 
-       down(&state->mutex);
+       mutex_lock(&state->mutex);
 
        do {
                /* Instruct HI to read n bytes */
@@ -1105,7 +1105,7 @@ static int AtomicReadBlock(struct drxd_state *state,
                        pData[(2 * i) + 1] = (u8) (word >> 8);
                }
        }
-       up(&state->mutex);
+       mutex_unlock(&state->mutex);
        return status;
 }
 
@@ -1334,7 +1334,7 @@ static int SC_ProcStartCommand(struct drxd_state *state,
        int status = 0;
        u16 scExec;
 
-       down(&state->mutex);
+       mutex_lock(&state->mutex);
        do {
                Read16(state, SC_COMM_EXEC__A, &scExec, 0);
                if (scExec != 1) {
@@ -1348,7 +1348,7 @@ static int SC_ProcStartCommand(struct drxd_state *state,
 
                SC_SendCommand(state, SC_RA_RAM_CMD_PROC_START);
        } while (0);
-       up(&state->mutex);
+       mutex_unlock(&state->mutex);
        return status;
 }
 
@@ -1357,7 +1357,7 @@ static int SC_SetPrefParamCommand(struct drxd_state *state,
 {
        int status;
 
-       down(&state->mutex);
+       mutex_lock(&state->mutex);
        do {
                status = SC_WaitForReady(state);
                if (status < 0)
@@ -1376,7 +1376,7 @@ static int SC_SetPrefParamCommand(struct drxd_state *state,
                if (status < 0)
                        break;
        } while (0);
-       up(&state->mutex);
+       mutex_unlock(&state->mutex);
        return status;
 }
 
@@ -1385,7 +1385,7 @@ static int SC_GetOpParamCommand(struct drxd_state *state, u16 * result)
 {
        int status = 0;
 
-       down(&state->mutex);
+       mutex_lock(&state->mutex);
        do {
                status = SC_WaitForReady(state);
                if (status < 0)
@@ -1397,7 +1397,7 @@ static int SC_GetOpParamCommand(struct drxd_state *state, u16 * result)
                if (status < 0)
                        break;
        } while (0);
-       up(&state->mutex);
+       mutex_unlock(&state->mutex);
        return status;
 }
 #endif
@@ -2977,7 +2977,7 @@ struct dvb_frontend *drxd_attach(const struct drxd_config *config,
        state->i2c = i2c;
        state->priv = priv;
 
-       sema_init(&state->mutex, 1);
+       mutex_init(&state->mutex);
 
        if (Read16(state, 0, 0, 0) < 0)
                goto error;