We got a compile warning for mxcmmc, drivers/mmc/host/mxcmmc.c: In function 'mxcmci_data_done': drivers/mmc/host/mxcmmc.c:661:6: warning: variable 'data_error' set but not used [-Wunused-but-set-variable] The easiest method is to remove the data_error. But looking into the code closely, I think we should check the return value of mxcmci_finish_data as if it got data->error(the same as data_error), we shouldn't try to read the response. Signed-off-by: Shawn Lin <shawn.lin@xxxxxxxxxxxxxx> --- drivers/mmc/host/mxcmmc.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c index fb3ca82..3814942 100644 --- a/drivers/mmc/host/mxcmmc.c +++ b/drivers/mmc/host/mxcmmc.c @@ -681,6 +681,9 @@ static void mxcmci_data_done(struct mxcmci_host *host, unsigned int stat) spin_unlock_irqrestore(&host->lock, flags); + if (data_error) + return; + mxcmci_read_response(host, stat); host->cmd = NULL; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html