mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-02 23:27:06 +00:00
Code Issues Releases Wiki Activity

mmc: core: Reset HPI enabled state during re-init and in case of errors

Browse source 
commit a0741ba40a 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: eb0d8f135b ("mmc: core: support HPI send command")
Cc: <stable@vger.kernel.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ulf Hansson 2018-12-10 17:52:36 +01:00 committed by Greg Kroah-Hartman
parent baecfd9178
commit 68f3ea1d87
1 changed files with 3 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
drivers/mmc/core/mmc.c
View file

@ -1719,9 +1719,11 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
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;
}
}
/*