raw/ifpga/base: enhance driver reliability in multi-process

[dpdk.git] / drivers / raw / ifpga / base / opae_i2c.c

diff --git a/drivers/raw/ifpga/base/opae_i2c.c b/drivers/raw/ifpga/base/opae_i2c.c
index 846d751..598eab5 100644 (file)
--- a/drivers/raw/ifpga/base/opae_i2c.c
+++ b/drivers/raw/ifpga/base/opae_i2c.c
@@ -30,7 +30,7 @@ int i2c_read(struct altera_i2c_dev *dev, int flags, unsigned int slave_addr,
        int i = 0;
        int ret;
 
-       pthread_mutex_lock(&dev->lock);
+       pthread_mutex_lock(dev->mutex);
 
        if (flags & I2C_FLAG_ADDR16)
                msgbuf[i++] = offset >> 8;
@@ -60,7 +60,7 @@ int i2c_read(struct altera_i2c_dev *dev, int flags, unsigned int slave_addr,
        ret = i2c_transfer(dev, msg, 2);
 
 exit:
-       pthread_mutex_unlock(&dev->lock);
+       pthread_mutex_unlock(dev->mutex);
        return ret;
 }
 
@@ -72,7 +72,7 @@ int i2c_write(struct altera_i2c_dev *dev, int flags, unsigned int slave_addr,
        int ret;
        int i = 0;
 
-       pthread_mutex_lock(&dev->lock);
+       pthread_mutex_lock(dev->mutex);
 
        if (!dev->xfer) {
                ret = -ENODEV;
@@ -100,7 +100,7 @@ int i2c_write(struct altera_i2c_dev *dev, int flags, unsigned int slave_addr,
 
        opae_free(buf);
 exit:
-       pthread_mutex_unlock(&dev->lock);
+       pthread_mutex_unlock(dev->mutex);
        return ret;
 }
 
@@ -496,6 +496,7 @@ struct altera_i2c_dev *altera_i2c_probe(void *base)
 
        if (pthread_mutex_init(&dev->lock, NULL))
                return NULL;
+       dev->mutex = &dev->lock;
 
        altera_i2c_hardware_init(dev);