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pn53x_data_new() now returns null ptr upon malloc() error

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This commit is contained in:
Philippe Teuwen 2013-03-18 00:20:49 +01:00
parent af57df532b
commit 06d5b54308
8 changed files with 55 additions and 12 deletions
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8
libnfc/chips/pn53x.c
View file

@ -3122,11 +3122,13 @@ pn53x_current_target_is(const struct nfc_device *pnd, const nfc_target *pnt)
return true;
}
void
void *
pn53x_data_new(struct nfc_device *pnd, const struct pn53x_io *io)
{
pnd->chip_data = malloc(sizeof(struct pn53x_data));
if (!pnd->chip_data) {
return NULL;
}
// Keep I/O functions
CHIP_DATA(pnd)->io = io;
@ -3165,6 +3167,8 @@ pn53x_data_new(struct nfc_device *pnd, const struct pn53x_io *io)
CHIP_DATA(pnd)->supported_modulation_as_initiator = NULL;
CHIP_DATA(pnd)->supported_modulation_as_target = NULL;
return pnd->chip_data;
}
void

2
libnfc/chips/pn53x.h
View file

@ -394,7 +394,7 @@ int pn53x_get_supported_modulation(nfc_device *pnd, const nfc_mode mode, cons
int pn53x_get_supported_baud_rate(nfc_device *pnd, const nfc_modulation_type nmt, const nfc_baud_rate **const supported_br);
int pn53x_get_information_about(nfc_device *pnd, char **pbuf);
void pn53x_data_new(struct nfc_device *pnd, const struct pn53x_io *io);
void *pn53x_data_new(struct nfc_device *pnd, const struct pn53x_io *io);
void pn53x_data_free(struct nfc_device *pnd);
#endif // __NFC_CHIPS_PN53X_H__

5
libnfc/drivers/acr122_pcsc.c
View file

@ -264,7 +264,10 @@ acr122_pcsc_open(const nfc_context *context, const nfc_connstring connstring)
}
// Alloc and init chip's data
pn53x_data_new(pnd, &acr122_pcsc_io);
if (pn53x_data_new(pnd, &acr122_pcsc_io) == NULL) {
perror("malloc");
goto error;
}
SCARDCONTEXT *pscc;

5
libnfc/drivers/acr122_usb.c
View file

@ -452,7 +452,10 @@ acr122_usb_open(const nfc_context *context, const nfc_connstring connstring)
*DRIVER_DATA(pnd) = data;
// Alloc and init chip's data
pn53x_data_new(pnd, &acr122_usb_io);
if (pn53x_data_new(pnd, &acr122_usb_io) == NULL) {
perror("malloc");
goto error;
}
memcpy(&(DRIVER_DATA(pnd)->tama_frame), acr122_usb_frame_template, sizeof(acr122_usb_frame_template));
memcpy(&(DRIVER_DATA(pnd)->apdu_frame), acr122_usb_frame_template, sizeof(acr122_usb_frame_template));

14
libnfc/drivers/acr122s.c
View file

@ -454,7 +454,12 @@ acr122s_scan(const nfc_context *context, nfc_connstring connstrings[], const siz
DRIVER_DATA(pnd)->abort_flag = false;
#endif
pn53x_data_new(pnd, &acr122s_io);
if (pn53x_data_new(pnd, &acr122s_io) == NULL) {
perror("malloc");
uart_close(DRIVER_DATA(pnd)->port);
nfc_device_free(pnd);
return 0;
}
CHIP_DATA(pnd)->type = PN532;
CHIP_DATA(pnd)->power_mode = NORMAL;
@ -583,7 +588,12 @@ acr122s_open(const nfc_context *context, const nfc_connstring connstring)
DRIVER_DATA(pnd)->abort_flag = false;
#endif
pn53x_data_new(pnd, &acr122s_io);
if (pn53x_data_new(pnd, &acr122s_io) == NULL) {
perror("malloc");
uart_close(DRIVER_DATA(pnd)->port);
nfc_device_free(pnd);
return NULL;
}
CHIP_DATA(pnd)->type = PN532;
#if 1

14
libnfc/drivers/arygon.c
View file

@ -135,7 +135,12 @@ arygon_scan(const nfc_context *context, nfc_connstring connstrings[], const size
DRIVER_DATA(pnd)->port = sp;
// Alloc and init chip's data
pn53x_data_new(pnd, &arygon_tama_io);
if (pn53x_data_new(pnd, &arygon_tama_io) == NULL) {
perror("malloc");
uart_close(DRIVER_DATA(pnd)->port);
nfc_device_free(pnd);
return 0;
}
#ifndef WIN32
// pipe-based abort mecanism
@ -259,7 +264,12 @@ arygon_open(const nfc_context *context, const nfc_connstring connstring)
DRIVER_DATA(pnd)->port = sp;
// Alloc and init chip's data
pn53x_data_new(pnd, &arygon_tama_io);
if (pn53x_data_new(pnd, &arygon_tama_io) == NULL) {
perror("malloc");
uart_close(DRIVER_DATA(pnd)->port);
nfc_device_free(pnd);
return NULL;
}
// The PN53x chip opened to ARYGON MCU doesn't seems to be in LowVBat mode
CHIP_DATA(pnd)->power_mode = NORMAL;

14
libnfc/drivers/pn532_uart.c
View file

@ -104,7 +104,12 @@ pn532_uart_scan(const nfc_context *context, nfc_connstring connstrings[], const
DRIVER_DATA(pnd)->port = sp;
// Alloc and init chip's data
pn53x_data_new(pnd, &pn532_uart_io);
if (pn53x_data_new(pnd, &pn532_uart_io) == NULL) {
perror("malloc");
uart_close(DRIVER_DATA(pnd)->port);
nfc_device_free(pnd);
return 0;
}
// SAMConfiguration command if needed to wakeup the chip and pn53x_SAMConfiguration check if the chip is a PN532
CHIP_DATA(pnd)->type = PN532;
// This device starts in LowVBat power mode
@ -231,7 +236,12 @@ pn532_uart_open(const nfc_context *context, const nfc_connstring connstring)
DRIVER_DATA(pnd)->port = sp;
// Alloc and init chip's data
pn53x_data_new(pnd, &pn532_uart_io);
if (pn53x_data_new(pnd, &pn532_uart_io) == NULL) {
perror("malloc");
uart_close(DRIVER_DATA(pnd)->port);
nfc_device_free(pnd);
return NULL;
}
// SAMConfiguration command if needed to wakeup the chip and pn53x_SAMConfiguration check if the chip is a PN532
CHIP_DATA(pnd)->type = PN532;
// This device starts in LowVBat mode

5
libnfc/drivers/pn53x_usb.c
View file

@ -337,7 +337,10 @@ pn53x_usb_open(const nfc_context *context, const nfc_connstring connstring)
*DRIVER_DATA(pnd) = data;
// Alloc and init chip's data
pn53x_data_new(pnd, &pn53x_usb_io);
if (pn53x_data_new(pnd, &pn53x_usb_io) == NULL) {
perror("malloc");
goto error;
}
switch (DRIVER_DATA(pnd)->model) {
// empirical tuning