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-rw-r--r--sound/soc/sh/rz-ssi.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/sound/soc/sh/rz-ssi.c b/sound/soc/sh/rz-ssi.c
index 468050467bb3..12e063c29a2a 100644
--- a/sound/soc/sh/rz-ssi.c
+++ b/sound/soc/sh/rz-ssi.c
@@ -483,6 +483,8 @@ static int rz_ssi_pio_send(struct rz_ssi_priv *ssi, struct rz_ssi_stream *strm)
sample_space = strm->fifo_sample_size;
ssifsr = rz_ssi_reg_readl(ssi, SSIFSR);
sample_space -= (ssifsr >> SSIFSR_TDC_SHIFT) & SSIFSR_TDC_MASK;
+ if (sample_space < 0)
+ return -EINVAL;
/* Only add full frames at a time */
while (frames_left && (sample_space >= runtime->channels)) {