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path: root/drivers/media/firewire
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-rw-r--r--drivers/media/firewire/firedtv-avc.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/media/firewire/firedtv-avc.c b/drivers/media/firewire/firedtv-avc.c
index ac17567f0822..251a556112a9 100644
--- a/drivers/media/firewire/firedtv-avc.c
+++ b/drivers/media/firewire/firedtv-avc.c
@@ -1157,7 +1157,7 @@ int avc_ca_pmt(struct firedtv *fdtv, char *msg, int length)
if (pmt_cmd_id != 1 && pmt_cmd_id != 4)
dev_err(fdtv->device,
"invalid pmt_cmd_id %d\n", pmt_cmd_id);
- if (program_info_length > sizeof(c->operand) - write_pos) {
+ if (program_info_length > sizeof(c->operand) - 4 - write_pos) {
ret = -EINVAL;
goto out;
}
@@ -1184,7 +1184,8 @@ int avc_ca_pmt(struct firedtv *fdtv, char *msg, int length)
dev_err(fdtv->device, "invalid pmt_cmd_id %d "
"at stream level\n", pmt_cmd_id);
- if (es_info_length > sizeof(c->operand) - write_pos) {
+ if (es_info_length > sizeof(c->operand) - 4 -
+ write_pos) {
ret = -EINVAL;
goto out;
}