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