This is a note to let you know that I've just added the patch titled
mmc: block: return error on failed mmc_blk_get()
to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mmc-block-return-error-on-failed-mmc_blk_get.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From f00ab14c252ac459e86194747a1f580ab503c954 Mon Sep 17 00:00:00 2001
From: Olof Johansson <olof@xxxxxxxxx>
Date: Tue, 9 Feb 2016 09:34:30 -0800
Subject: mmc: block: return error on failed mmc_blk_get()
From: Olof Johansson <olof@xxxxxxxxx>
commit f00ab14c252ac459e86194747a1f580ab503c954 upstream.
This used to return -EFAULT, but the function above returns -EINVAL on
the same condition so let's stick to that.
The removal of error return on this path was introduced with b093410c9aef
('mmc: block: copy resp[] data on err for MMC_IOC_MULTI_CMD').
Fixes: b093410c9aef ('mmc: block: copy resp[] data on err for MMC_IOC_MULTI_CMD').
Signed-off-by: Olof Johansson <olof@xxxxxxxxx>
Cc: Grant Grundler <grundler@xxxxxxxxxx>
Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/mmc/card/block.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -668,8 +668,10 @@ static int mmc_blk_ioctl_multi_cmd(struc
}
md = mmc_blk_get(bdev->bd_disk);
- if (!md)
+ if (!md) {
+ err = -EINVAL;
goto cmd_err;
+ }
card = md->queue.card;
if (IS_ERR(card)) {
Patches currently in stable-queue which might be from olof@xxxxxxxxx are
queue-4.4/mmc-block-return-error-on-failed-mmc_blk_get.patch
