diff options
Diffstat (limited to 'drivers/media/dvb/dvb-core/dvb_ca_en50221.c')
| -rw-r--r-- | drivers/media/dvb/dvb-core/dvb_ca_en50221.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/media/dvb/dvb-core/dvb_ca_en50221.c b/drivers/media/dvb/dvb-core/dvb_ca_en50221.c index 7ea517b7e18..9be65a3b931 100644 --- a/drivers/media/dvb/dvb-core/dvb_ca_en50221.c +++ b/drivers/media/dvb/dvb-core/dvb_ca_en50221.c @@ -1306,6 +1306,10 @@ static ssize_t dvb_ca_en50221_io_write(struct file *file, /* fragment the packets & store in the buffer */ while (fragpos < count) { fraglen = ca->slot_info[slot].link_buf_size - 2; + if (fraglen < 0) + break; + if (fraglen > HOST_LINK_BUF_SIZE - 2) + fraglen = HOST_LINK_BUF_SIZE - 2; if ((count - fragpos) < fraglen) fraglen = count - fragpos; |