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[spi-hdlc-adapter] remove unused variables (#4252)

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This commit is contained in:
Zhanglong Xia
2019-10-22 11:24:52 -07:00
committed by Jonathan Hui
parent fb14009916
commit 5858bd1d28
1 changed files with 14 additions and 24 deletions
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tools/spi-hdlc-adapter/spi-hdlc-adapter.c
+14 -24
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@@ -141,10 +141,6 @@ static int sMode = MODE_PTY;
static int sMode = MODE_STDIO;
#endif
static const char *sSpiDevPath = NULL;
static const char *sIntGpioDevPath = NULL;
static const char *sResGpioDevPath = NULL;
static int sLogLevel = LOG_WARNING;
static int sSpiDevFd = -1;
@@ -1136,7 +1132,8 @@ static bool setup_spi_dev(const char *path)
int fd = -1;
const uint8_t spi_word_bits = 8;
int ret;
sSpiDevPath = path;
syslog(LOG_DEBUG, "SPI device path: %s", path);
fd = open(path, O_RDWR | O_CLOEXEC);
if (fd < 0)
@@ -1194,7 +1191,7 @@ static bool setup_res_gpio(const char *path)
char *value_path = NULL;
int len;
sResGpioDevPath = path;
syslog(LOG_DEBUG, "Reset gpio path: %s", path);
len = asprintf(&dir_path, "%s/direction", path);
@@ -1282,7 +1279,7 @@ static bool setup_int_gpio(const char *path)
sIntGpioValueFd = -1;
sIntGpioDevPath = path;
syslog(LOG_DEBUG, "Interrupt gpio path: %s", path);
len = asprintf(&dir_path, "%s/direction", path);
@@ -1719,33 +1716,26 @@ int main(int argc, char *argv[])
syslog(LOG_NOTICE, "spi-hdlc-adapter " SPI_HDLC_VERSION " (" __TIME__ " " __DATE__ ")\n");
argc -= optind;
argv += optind;
if (argc >= 1)
if (optind == argc)
{
if (!setup_spi_dev(argv[0]))
fprintf(stderr, "%s: Missing SPI device path\n", prog);
exit(EXIT_FAILURE);
}
else if (optind + 1 == argc)
{
if (!setup_spi_dev(argv[optind]))
{
char spi_path[64];
strncpy(spi_path, argv[0], sizeof(spi_path) - 1);
strncpy(spi_path, argv[optind], sizeof(spi_path) - 1);
spi_path[sizeof(spi_path) - 1] = 0;
syslog(LOG_ERR, "%s: Unable to open SPI device \"%s\", %s", prog, spi_path, strerror(errno));
exit(EXIT_FAILURE);
}
argc--;
argv++;
}
if (argc >= 1)
else
{
fprintf(stderr, "%s: Unexpected argument \"%s\"\n", prog, argv[0]);
exit(EXIT_FAILURE);
}
if (sSpiDevPath == NULL)
{
fprintf(stderr, "%s: Missing SPI device path\n", prog);
fprintf(stderr, "%s: Unexpected argument \"%s\"\n", prog, argv[optind + 1]);
exit(EXIT_FAILURE);
}