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Merge pull request #11161 from miri64/gnrc_pktbuf/fix/start-write-size-0

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gnrc_pktbuf: allow write-protect of size 0 snips
This commit is contained in:
Semjon Kerner 2019-03-15 15:10:59 +01:00 committed by GitHub
commit db589365f0
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2 changed files with 2 additions and 2 deletions
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2
sys/net/gnrc/pktbuf_malloc/gnrc_pktbuf_malloc.c
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@ -232,7 +232,7 @@ void gnrc_pktbuf_release_error(gnrc_pktsnip_t *pkt, uint32_t err)
gnrc_pktsnip_t *gnrc_pktbuf_start_write(gnrc_pktsnip_t *pkt) gnrc_pktsnip_t *gnrc_pktbuf_start_write(gnrc_pktsnip_t *pkt)
{ {
mutex_lock(&_mutex); mutex_lock(&_mutex);
if ((pkt == NULL) || (pkt->size == 0)) { if (pkt == NULL) {
mutex_unlock(&_mutex); mutex_unlock(&_mutex);
return NULL; return NULL;
} }

2
sys/net/gnrc/pktbuf_static/gnrc_pktbuf_static.c
View File

@ -249,7 +249,7 @@ void gnrc_pktbuf_release_error(gnrc_pktsnip_t *pkt, uint32_t err)
gnrc_pktsnip_t *gnrc_pktbuf_start_write(gnrc_pktsnip_t *pkt) gnrc_pktsnip_t *gnrc_pktbuf_start_write(gnrc_pktsnip_t *pkt)
{ {
mutex_lock(&_mutex); mutex_lock(&_mutex);
if ((pkt == NULL) || (pkt->size == 0)) { if (pkt == NULL) {
mutex_unlock(&_mutex); mutex_unlock(&_mutex);
return NULL; return NULL;
} }