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spi: spidev_test: make size argument mandatory for --size

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When the argument to --size is omitted, abort with a message instead of
transmitting default_tx[].

Signed-off-by: Jonas Rebmann <jre@pengutronix.de>
Link: https://patch.msgid.link/20260924-spi-sun4i-spidev_test-v7-3-126e31a07fdc@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Jonas Rebmann 2026-09-24 15:43:53 +02:00 committed by Mark Brown
parent a9e74a4c99
commit df79e49bd7
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GPG Key ID: 24D68B725D5487D0
1 changed files with 7 additions and 2 deletions
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9
tools/spi/spidev_test.c
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@ -41,9 +41,10 @@ static uint32_t speed = 500000;
static uint16_t delay;
static uint16_t word_delay;
static int verbose;
static int transfer_size;
static int transfer_size = -1;
static int iterations;
static int interval = 5; /* interval in seconds for showing transfer rate */
static int random_input;
static int input_choices;
static uint8_t default_tx[] = {
@ -319,6 +320,7 @@ static void parse_opts(int argc, char *argv[])
break;
case 'S':
transfer_size = atoi(optarg);
random_input = 1;
input_choices++;
break;
case 'I':
@ -454,6 +456,9 @@ int main(int argc, char *argv[])
pabort("at most one of -S (--size), -p, -i (--input) may be selected, "
"and each may be specified only once");
if (random_input && transfer_size < 0)
pabort("a size argument is mandatory for -S (--size)");
fd = open(device, O_RDWR);
if (fd < 0)
pabort("can't open device");
@ -509,7 +514,7 @@ int main(int argc, char *argv[])
transfer_escaped_string(fd, input_tx);
else if (input_file)
transfer_file(fd, input_file);
else if (transfer_size) {
else if (transfer_size >= 0) {
struct timespec last_stat;
clock_gettime(CLOCK_MONOTONIC, &last_stat);