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pkg/semtech_loramac: fix DEBUG message when payload is NULL

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In function `_semtech_loramac_send` parameter `payload` can be NULL (that the
case when scheduling an immediate TX, line 726). As DEBUG macro use printf,
a %s parameter can't be NULL so we have to handle that case.
This commit is contained in:
Guillaume Gonnet 2019-05-15 20:50:55 +02:00
parent 901513391a
commit f5c9fef096
1 changed files with 1 additions and 1 deletions
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pkg/semtech-loramac/contrib/semtech_loramac.c
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@ -82,7 +82,7 @@ typedef struct {
static uint8_t _semtech_loramac_send(semtech_loramac_t *mac,
uint8_t *payload, uint8_t len)
{
DEBUG("[semtech-loramac] send frame %s\n", (char *)payload);
DEBUG("[semtech-loramac] send frame %s\n", payload ? (char *)payload : "(empty)");
McpsReq_t mcpsReq;
LoRaMacTxInfo_t txInfo;
uint8_t dr = semtech_loramac_get_dr(mac);