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-rw-r--r--drivers/i2c/busses/i2c-sh_mobile.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/i2c/busses/i2c-sh_mobile.c b/drivers/i2c/busses/i2c-sh_mobile.c
index 640cbb23732..3384a717fec 100644
--- a/drivers/i2c/busses/i2c-sh_mobile.c
+++ b/drivers/i2c/busses/i2c-sh_mobile.c
@@ -318,7 +318,8 @@ static int sh_mobile_i2c_isr_rx(struct sh_mobile_i2c_data *pd)
} else
data = i2c_op(pd, OP_RX, 0);
- pd->msg->buf[real_pos] = data;
+ if (real_pos >= 0)
+ pd->msg->buf[real_pos] = data;
} while (0);
pd->pos++;