diff options
Diffstat (limited to 'drivers/firmware/arm_scmi/driver.c')
| -rw-r--r-- | drivers/firmware/arm_scmi/driver.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c index dee7ce3bd815..2952fcd8dd8a 100644 --- a/drivers/firmware/arm_scmi/driver.c +++ b/drivers/firmware/arm_scmi/driver.c @@ -735,6 +735,11 @@ static int scmi_mbox_chan_setup(struct scmi_info *info, struct device *dev, idx = tx ? 0 : 1; idr = tx ? &info->tx_idr : &info->rx_idr; + /* check if already allocated, used for multiple device per protocol */ + cinfo = idr_find(idr, prot_id); + if (cinfo) + return 0; + if (scmi_mailbox_check(np, idx)) { cinfo = idr_find(idr, SCMI_PROTOCOL_BASE); if (unlikely(!cinfo)) /* Possible only if platform has no Rx */ |