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Prevent from segfault when nfc_disconnect() on NULL pointer

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This commit is contained in:
Romuald Conty 2010-08-11 16:38:22 +00:00
parent 9cc31f6aad
commit d11e7a1320
1 changed files with 8 additions and 6 deletions
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2
libnfc/nfc.c
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@ -234,12 +234,14 @@ nfc_device_t* nfc_connect(nfc_device_desc_t* pndd)
*/ */
void nfc_disconnect(nfc_device_t* pnd) void nfc_disconnect(nfc_device_t* pnd)
{ {
if(pnd) {
// Release and deselect all active communications // Release and deselect all active communications
nfc_initiator_deselect_target(pnd); nfc_initiator_deselect_target(pnd);
// Disable RF field to avoid heating // Disable RF field to avoid heating
nfc_configure(pnd,NDO_ACTIVATE_FIELD,false); nfc_configure(pnd,NDO_ACTIVATE_FIELD,false);
// Disconnect, clean up and release the device // Disconnect, clean up and release the device
pnd->pdc->disconnect(pnd); pnd->pdc->disconnect(pnd);
}
} }
/** /**