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net: ip: Fix dereference before NULL check

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Fix warnings like "Dereference before NULL check". Also make check
readable.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
This commit is contained in:
Andrei Emeltchenko 2022-12-29 14:04:33 +02:00 • committed by Fabio Baltieri
commit d320100df4
1 changed files with 4 additions and 2 deletions
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6
subsys/net/ip/net_pkt.c
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@ -1775,15 +1775,17 @@ int net_pkt_copy(struct net_pkt *pkt_dst,
static int32_t net_pkt_find_offset(struct net_pkt *pkt, uint8_t *ptr)
{
struct net_buf *buf = pkt->buffer;
struct net_buf *buf;
uint32_t ret = -EINVAL;
uint16_t offset;
if (!(ptr && pkt && buf)) {
if (!ptr || !pkt || !pkt->buffer) {
return ret;
}
offset = 0U;
buf = pkt->buffer;
while (buf) {
if (buf->data <= ptr && ptr <= (buf->data + buf->len)) {
ret = offset + (ptr - buf->data);