4.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Ulf Hansson <ulf.hansson@xxxxxxxxxx> commit a0741ba40a009f97c019ae7541dc61c1fdf41efb upstream. During a re-initialization of the eMMC card, we may fail to re-enable HPI. In these cases, that isn't properly reflected in the card->ext_csd.hpi_en bit, as it keeps being set. This may cause following attempts to use HPI, even if's not enabled. Let's fix this! Fixes: eb0d8f135b67 ("mmc: core: support HPI send command") Cc: <stable@xxxxxxxxxxxxxxx> Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/mmc/core/mmc.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -1608,9 +1608,11 @@ static int mmc_init_card(struct mmc_host if (err) { pr_warn("%s: Enabling HPI failed\n", mmc_hostname(card->host)); + card->ext_csd.hpi_en = 0; err = 0; - } else + } else { card->ext_csd.hpi_en = 1; + } } /*