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| author | David S. Miller <davem@davemloft.net> | 2012-03-18 23:29:41 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-03-18 23:29:41 -0400 |
| commit | 4da0bd736552e6377b407b3c3d3ae518ebbdd269 (patch) | |
| tree | f0da9f843b8033565c3ca4103fccb17a60688326 /drivers/i2c/algos/i2c-algo-bit.c | |
| parent | 81a430ac1b88b0702c57d2513e247317e810e04d (diff) | |
| parent | c16fa4f2ad19908a47c63d8fa436a1178438c7e7 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'drivers/i2c/algos/i2c-algo-bit.c')
| -rw-r--r-- | drivers/i2c/algos/i2c-algo-bit.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/i2c/algos/i2c-algo-bit.c b/drivers/i2c/algos/i2c-algo-bit.c index 525c7345fa0b..24f94f4ae395 100644 --- a/drivers/i2c/algos/i2c-algo-bit.c +++ b/drivers/i2c/algos/i2c-algo-bit.c @@ -103,8 +103,14 @@ static int sclhi(struct i2c_algo_bit_data *adap) * chips may hold it low ("clock stretching") while they * are processing data internally. */ - if (time_after(jiffies, start + adap->timeout)) + if (time_after(jiffies, start + adap->timeout)) { + /* Test one last time, as we may have been preempted + * between last check and timeout test. + */ + if (getscl(adap)) + break; return -ETIMEDOUT; + } cond_resched(); } #ifdef DEBUG |