diff options
| author | wengjianfeng <wengjianfeng@yulong.com> | 2021-04-12 05:20:06 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-04-12 23:23:03 +0300 |
| commit | a115d24a636e892ddd1ae58f8e23c78a0390cb68 (patch) | |
| tree | a52dd32aa2cee8b8b6d92819cec29f9eb507f82a /drivers/nfc | |
| parent | 5711ffd31355e17d87710e7691899409a640f58a (diff) | |
| download | linux-a115d24a636e892ddd1ae58f8e23c78a0390cb68.tar.xz | |
nfc: pn533: remove redundant assignment
In many places,first assign a value to a variable and then return
the variable. which is redundant, we should directly return the value.
in pn533_rf_field funciton,return rc also in the if statement, so we
use return 0 to replace the last return rc.
Signed-off-by: wengjianfeng <wengjianfeng@yulong.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/nfc')
| -rw-r--r-- | drivers/nfc/pn533/i2c.c | 8 | ||||
| -rw-r--r-- | drivers/nfc/pn533/pn533.c | 17 |
2 files changed, 6 insertions, 19 deletions
diff --git a/drivers/nfc/pn533/i2c.c b/drivers/nfc/pn533/i2c.c index 0207e66cee21..795da9b85d56 100644 --- a/drivers/nfc/pn533/i2c.c +++ b/drivers/nfc/pn533/i2c.c @@ -40,11 +40,8 @@ static int pn533_i2c_send_ack(struct pn533 *dev, gfp_t flags) struct i2c_client *client = phy->i2c_dev; static const u8 ack[6] = {0x00, 0x00, 0xff, 0x00, 0xff, 0x00}; /* spec 6.2.1.3: Preamble, SoPC (2), ACK Code (2), Postamble */ - int rc; - - rc = i2c_master_send(client, ack, 6); - return rc; + return i2c_master_send(client, ack, 6); } static int pn533_i2c_send_frame(struct pn533 *dev, @@ -199,8 +196,7 @@ static int pn533_i2c_probe(struct i2c_client *client, &phy->i2c_dev->dev); if (IS_ERR(priv)) { - r = PTR_ERR(priv); - return r; + return PTR_ERR(priv); } phy->priv = priv; diff --git a/drivers/nfc/pn533/pn533.c b/drivers/nfc/pn533/pn533.c index 3fe5b81eda2d..2c7f9916f206 100644 --- a/drivers/nfc/pn533/pn533.c +++ b/drivers/nfc/pn533/pn533.c @@ -489,12 +489,8 @@ static int pn533_send_data_async(struct pn533 *dev, u8 cmd_code, pn533_send_async_complete_t complete_cb, void *complete_cb_context) { - int rc; - - rc = __pn533_send_async(dev, cmd_code, req, complete_cb, + return __pn533_send_async(dev, cmd_code, req, complete_cb, complete_cb_context); - - return rc; } static int pn533_send_cmd_async(struct pn533 *dev, u8 cmd_code, @@ -502,12 +498,8 @@ static int pn533_send_cmd_async(struct pn533 *dev, u8 cmd_code, pn533_send_async_complete_t complete_cb, void *complete_cb_context) { - int rc; - - rc = __pn533_send_async(dev, cmd_code, req, complete_cb, + return __pn533_send_async(dev, cmd_code, req, complete_cb, complete_cb_context); - - return rc; } /* @@ -2620,7 +2612,7 @@ static int pn533_rf_field(struct nfc_dev *nfc_dev, u8 rf) return rc; } - return rc; + return 0; } static int pn532_sam_configuration(struct nfc_dev *nfc_dev) @@ -2794,7 +2786,6 @@ struct pn533 *pn53x_common_init(u32 device_type, struct device *dev) { struct pn533 *priv; - int rc = -ENOMEM; priv = kzalloc(sizeof(*priv), GFP_KERNEL); if (!priv) @@ -2836,7 +2827,7 @@ struct pn533 *pn53x_common_init(u32 device_type, error: kfree(priv); - return ERR_PTR(rc); + return ERR_PTR(-ENOMEM); } EXPORT_SYMBOL_GPL(pn53x_common_init); |