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path: root/drivers/nfc/pn533/pn533.c
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Diffstat (limited to 'drivers/nfc/pn533/pn533.c')
-rw-r--r--drivers/nfc/pn533/pn533.c20
1 files changed, 7 insertions, 13 deletions
diff --git a/drivers/nfc/pn533/pn533.c b/drivers/nfc/pn533/pn533.c
index f1469ac8ff42..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;
}
/*
@@ -706,6 +698,9 @@ static bool pn533_target_type_a_is_valid(struct pn533_target_type_a *type_a,
if (PN533_TYPE_A_SEL_CASCADE(type_a->sel_res) != 0)
return false;
+ if (type_a->nfcid_len > NFC_NFCID1_MAXSIZE)
+ return false;
+
return true;
}
@@ -2617,7 +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)
@@ -2791,7 +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)
@@ -2833,7 +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);