According to SD specification checking state of DAT0 only is enough for polling card busy signal. Header file comment says DAT[0:3]. Fix this. Signed-off-by: Mårten Lindahl <marten.lindahl@xxxxxxxx> --- include/linux/mmc/host.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h index 0abd47e9ef9b..ff1a251bb0bc 100644 --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -153,7 +153,7 @@ struct mmc_host_ops { int (*start_signal_voltage_switch)(struct mmc_host *host, struct mmc_ios *ios); - /* Check if the card is pulling dat[0:3] low */ + /* Check if the card is pulling dat[0] low */ int (*card_busy)(struct mmc_host *host); /* The tuning command opcode value is different for SD and eMMC cards */ -- 2.20.1