mmc: block: Fix missing blk_put_request()

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@intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Cc: stable@vger.kernel.org # 4.13+
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
index ea80ff4..f609398 100644 (file)
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -236,6 +236,7 @@ static ssize_t power_ro_lock_store(struct device *dev,
        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",
@@ -2557,6 +2558,7 @@ static int mmc_dbg_card_status_get(void *data, u64 *val)
                *val = ret;
                ret = 0;
        }
+       blk_put_request(req);
 
        return ret;
 }
@@ -2587,6 +2589,7 @@ static int mmc_ext_csd_open(struct inode *inode, struct file *filp)
        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;