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| author | Antony Pavlov <antonynpavlov@gmail.com> | 2011-08-02 11:08:36 +0400 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2011-08-03 09:22:21 +0200 |
| commit | 5c94a23f54cec808180fcbf519f466e2ca243bb2 (patch) | |
| tree | e39cd51ce959fbd50d239ba49b584ad674c3bcfb | |
| parent | b626a746a025c112eb4d00aec2ec78f4a7132324 (diff) | |
| download | barebox-5c94a23f54cec808180fcbf519f466e2ca243bb2.tar.gz barebox-5c94a23f54cec808180fcbf519f466e2ca243bb2.tar.xz | |
commands/led.c: check registered LEDs
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| -rw-r--r-- | commands/led.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/commands/led.c b/commands/led.c index 360ce7c77f..7fd9d44677 100644 --- a/commands/led.c +++ b/commands/led.c @@ -37,6 +37,12 @@ static int do_led(struct command *cmdtp, int argc, char *argv[]) if (argc == 1) { int i = 0; + led = led_by_number(i); + if (!led) { + printf("no registered LEDs\n"); + return COMMAND_ERROR; + } + printf("registered LEDs:\n"); while ((led = led_by_number(i))) { |