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* usbasp: replaced exit statements by return statements 

* usbasp: check valid handle on usbasp_close() call


git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@943 81a1dc3b-b13d-400b-aceb-764788c761c2
This commit is contained in:
springob 2010-04-25 12:36:36 +00:00
parent 59010a4b6f
commit 20a65eeeb8
1 changed files with 18 additions and 17 deletions
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17
usbasp.c
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@ -147,7 +147,7 @@ static int usbasp_transmit(PROGRAMMER * pgm,
5000); 5000);
if(nbytes < 0){ if(nbytes < 0){
fprintf(stderr, "%s: error: usbasp_transmit: %s\n", progname, strerror(libusb_to_errno(nbytes))); fprintf(stderr, "%s: error: usbasp_transmit: %s\n", progname, strerror(libusb_to_errno(nbytes)));
exit(1); return -1;
} }
#else #else
nbytes = usb_control_msg(PDATA(pgm)->usbhandle, nbytes = usb_control_msg(PDATA(pgm)->usbhandle,
@ -159,7 +159,7 @@ static int usbasp_transmit(PROGRAMMER * pgm,
5000); 5000);
if(nbytes < 0){ if(nbytes < 0){
fprintf(stderr, "%s: error: usbasp_transmit: %s\n", progname, usb_strerror()); fprintf(stderr, "%s: error: usbasp_transmit: %s\n", progname, usb_strerror());
exit(1); return -1;
} }
#endif #endif
return nbytes; return nbytes;
@ -347,7 +347,7 @@ static int usbasp_open(PROGRAMMER * pgm, char * port)
"%s: error: could not find USB device " "%s: error: could not find USB device "
"\"NIBObee\" with vid=0x%x pid=0x%x\n", "\"NIBObee\" with vid=0x%x pid=0x%x\n",
progname, USBASP_NIBOBEE_VID, USBASP_NIBOBEE_PID); progname, USBASP_NIBOBEE_VID, USBASP_NIBOBEE_PID);
exit(1); return -1;
} }
} else if (usbOpenDevice(&PDATA(pgm)->usbhandle, USBASP_SHARED_VID, "www.fischl.de", } else if (usbOpenDevice(&PDATA(pgm)->usbhandle, USBASP_SHARED_VID, "www.fischl.de",
@ -362,7 +362,7 @@ static int usbasp_open(PROGRAMMER * pgm, char * port)
"%s: error: could not find USB device " "%s: error: could not find USB device "
"\"USBasp\" with vid=0x%x pid=0x%x\n", "\"USBasp\" with vid=0x%x pid=0x%x\n",
progname, USBASP_SHARED_VID, USBASP_SHARED_PID); progname, USBASP_SHARED_VID, USBASP_SHARED_PID);
exit(1); return -1;
} else { } else {
@ -380,16 +380,17 @@ static int usbasp_open(PROGRAMMER * pgm, char * port)
static void usbasp_close(PROGRAMMER * pgm) static void usbasp_close(PROGRAMMER * pgm)
{ {
if (PDATA(pgm)->usbhandle!=NULL) {
unsigned char temp[4]; unsigned char temp[4];
memset(temp, 0, sizeof(temp)); memset(temp, 0, sizeof(temp));
usbasp_transmit(pgm, 1, USBASP_FUNC_DISCONNECT, temp, temp, sizeof(temp)); usbasp_transmit(pgm, 1, USBASP_FUNC_DISCONNECT, temp, temp, sizeof(temp));
#ifdef USE_LIBUSB_1_0 #ifdef USE_LIBUSB_1_0
libusb_close(PDATA(pgm)->usbhandle); libusb_close(PDATA(pgm)->usbhandle);
#else #else
usb_close(PDATA(pgm)->usbhandle); usb_close(PDATA(pgm)->usbhandle);
#endif #endif
} }
}
static int usbasp_initialize(PROGRAMMER * pgm, AVRPART * p) static int usbasp_initialize(PROGRAMMER * pgm, AVRPART * p)
@ -544,7 +545,7 @@ static int usbasp_paged_load(PROGRAMMER * pgm, AVRPART * p, AVRMEM * m,
if (n != blocksize) { if (n != blocksize) {
fprintf(stderr, "%s: error: wrong reading bytes %x\n", fprintf(stderr, "%s: error: wrong reading bytes %x\n",
progname, n); progname, n);
exit(1); return -3;
} }
buffer += blocksize; buffer += blocksize;
@ -616,7 +617,7 @@ static int usbasp_paged_write(PROGRAMMER * pgm, AVRPART * p, AVRMEM * m,
if (n != blocksize) { if (n != blocksize) {
fprintf(stderr, "%s: error: wrong count at writing %x\n", fprintf(stderr, "%s: error: wrong count at writing %x\n",
progname, n); progname, n);
exit(1); return -3;
} }
@ -754,7 +755,7 @@ static int usbasp_nousb_open (struct programmer_t *pgm, char * name)
fprintf(stderr, "%s: error: no usb support. please compile again with libusb installed.\n", fprintf(stderr, "%s: error: no usb support. please compile again with libusb installed.\n",
progname); progname);
exit(1); return -1;
} }
void usbasp_initpgm(PROGRAMMER * pgm) void usbasp_initpgm(PROGRAMMER * pgm)