diff options
Diffstat (limited to 'drivers/gpu/drm/drm_dp_mst_topology.c')
| -rw-r--r-- | drivers/gpu/drm/drm_dp_mst_topology.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index 61e7beada832..6485ecaddbcb 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -2063,7 +2063,7 @@ ssize_t drm_dp_mst_dpcd_read(struct drm_dp_aux *aux, * sideband messaging as drm_dp_dpcd_write() does for local * devices via actual AUX CH. * - * Return: 0 on success, negative error code on failure. + * Return: number of bytes written on success, negative error code on failure. */ ssize_t drm_dp_mst_dpcd_write(struct drm_dp_aux *aux, unsigned int offset, void *buffer, size_t size) @@ -3428,12 +3428,9 @@ static int drm_dp_send_dpcd_write(struct drm_dp_mst_topology_mgr *mgr, drm_dp_queue_down_tx(mgr, txmsg); ret = drm_dp_mst_wait_tx_reply(mstb, txmsg); - if (ret > 0) { - if (txmsg->reply.reply_type == DP_SIDEBAND_REPLY_NAK) - ret = -EIO; - else - ret = 0; - } + if (ret > 0 && txmsg->reply.reply_type == DP_SIDEBAND_REPLY_NAK) + ret = -EIO; + kfree(txmsg); fail_put: drm_dp_mst_topology_put_mstb(mstb); |