This is a note to let you know that I've just added the patch titled
mmc: block: Fix missing blk_put_request()
to the 4.14-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-fix-missing-blk_put_request.patch
and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 34c089e806793a66e450b11bd167db6047399fcd Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Date: Tue, 21 Nov 2017 15:42:27 +0200
Subject: mmc: block: Fix missing blk_put_request()
From: Adrian Hunter <adrian.hunter@xxxxxxxxx>
commit 34c089e806793a66e450b11bd167db6047399fcd upstream.
Ensure blk_get_request() is paired with blk_put_request().
Fixes: 0493f6fe5bde ("mmc: block: Move boot partition locking into a driver op")
Fixes: 627c3ccfb46a ("mmc: debugfs: Move block debugfs into block module")
Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/mmc/core/block.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -207,6 +207,7 @@ static ssize_t power_ro_lock_store(struc
req_to_mmc_queue_req(req)->drv_op = MMC_DRV_OP_BOOT_WP;
blk_execute_rq(mq->queue, NULL, req, 0);
ret = req_to_mmc_queue_req(req)->drv_op_result;
+ blk_put_request(req);
if (!ret) {
pr_info("%s: Locking boot partition ro until next power on\n",
@@ -2321,6 +2322,7 @@ static int mmc_dbg_card_status_get(void
*val = ret;
ret = 0;
}
+ blk_put_request(req);
return ret;
}
@@ -2351,6 +2353,7 @@ static int mmc_ext_csd_open(struct inode
req_to_mmc_queue_req(req)->drv_op_data = &ext_csd;
blk_execute_rq(mq->queue, NULL, req, 0);
err = req_to_mmc_queue_req(req)->drv_op_result;
+ blk_put_request(req);
if (err) {
pr_err("FAILED %d\n", err);
goto out_free;
Patches currently in stable-queue which might be from adrian.hunter@xxxxxxxxx are
queue-4.14/mmc-block-check-return-value-of-blk_get_request.patch
queue-4.14/mmc-block-fix-missing-blk_put_request.patch
queue-4.14/mmc-block-ensure-that-debugfs-files-are-removed.patch
queue-4.14/mmc-core-do-not-leave-the-block-driver-in-a-suspended-state.patch
queue-4.14/mmc-sdhci-avoid-swiotlb-buffer-being-full.patch