]> pilppa.com Git - linux-2.6-omap-h63xx.git/commitdiff
i2c: fix i2c-sh_mobile rx underrun
authorMagnus Damm <damm@igel.co.jp>
Thu, 13 Nov 2008 06:28:21 +0000 (15:28 +0900)
committerPaul Mundt <lethal@linux-sh.org>
Thu, 13 Nov 2008 06:37:07 +0000 (15:37 +0900)
Fix receive path underrun in i2c-sh_mobile driver.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
drivers/i2c/busses/i2c-sh_mobile.c

index 640cbb237328196b1b3b22a91fea4b9ee42bf3b1..3384a717fec0d1d864eff63d8d0c798d7edd47cc 100644 (file)
@@ -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++;