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-rw-r--r--drivers/soundwire/cadence_master.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/soundwire/cadence_master.c b/drivers/soundwire/cadence_master.c
index d76dd24a6eae..ff4badc9b3de 100644
--- a/drivers/soundwire/cadence_master.c
+++ b/drivers/soundwire/cadence_master.c
@@ -718,6 +718,8 @@ int sdw_cdns_pdi_init(struct sdw_cdns *cdns,
stream = &cdns->pcm;
/* First two PDIs are reserved for bulk transfers */
+ if (stream->num_bd < CDNS_PCM_PDI_OFFSET)
+ return -EINVAL;
stream->num_bd -= CDNS_PCM_PDI_OFFSET;
offset = CDNS_PCM_PDI_OFFSET;