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net: caif: fix error code handling 

cfpkt_peek_head return 0 and 1, caller is checking error using <0

Signed-off-by: Tong Zhang <ztong0001@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tong Zhang 2020-08-24 18:08:06 -04:00 committed by David S. Miller
parent 8e4efd4706
commit e104684108
1 changed files with 2 additions and 2 deletions
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4
net/caif/cfrfml.c
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@ -116,7 +116,7 @@ static int cfrfml_receive(struct cflayer *layr, struct cfpkt *pkt)
if (segmented) {
if (rfml->incomplete_frm == NULL) {
/* Initial Segment */
if (cfpkt_peek_head(pkt, rfml->seghead, 6) < 0)
if (cfpkt_peek_head(pkt, rfml->seghead, 6) != 0)
goto out;
rfml->pdu_size = get_unaligned_le16(rfml->seghead+4);
@ -233,7 +233,7 @@ static int cfrfml_transmit(struct cflayer *layr, struct cfpkt *pkt)
if (cfpkt_getlen(pkt) > rfml->fragment_size + RFM_HEAD_SIZE)
err = cfpkt_peek_head(pkt, head, 6);
if (err < 0)
if (err != 0)
goto out;
while (cfpkt_getlen(frontpkt) > rfml->fragment_size + RFM_HEAD_SIZE) {