In case threads "race" to harvest async req completions, just return.
Signed-off-by: Grant Grundler <[email protected]> --- drivers/mmc/core/core.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index deb0ee5..36cfe91 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -531,6 +531,10 @@ struct mmc_async_req *mmc_start_req(struct mmc_host *host, int start_err = 0; struct mmc_async_req *saved_areq = host->areq; + if (!saved_areq && !areq) + /* Nothing to do...some code is polling. */ + goto set_error; + /* Prepare a new request */ if (areq) mmc_pre_req(host, areq->mrq, !saved_areq); -- 1.8.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
