diff options
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/at91_i2c.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/i2c/at91_i2c.c b/drivers/i2c/at91_i2c.c index aca8de9436..6b4c0e4804 100644 --- a/drivers/i2c/at91_i2c.c +++ b/drivers/i2c/at91_i2c.c @@ -51,6 +51,10 @@ static int at91_i2c_xfer_msg(struct at91_i2c_bus *bus, struct i2c_msg *msg) u32 i; int ret = 0; + /* if there is no message to send/receive, just exit quietly */ + if (msg->len == 0) + return ret; + readl(®->sr); if (is_read) { writel(TWI_CR_START, ®->cr); |