mmc: core: convert slot functions to managed allocation

This prepares for the addition of further slot functions.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c
index b8c5290571f1..74cf29a504f4 100644
--- a/drivers/mmc/core/host.c
+++ b/drivers/mmc/core/host.c
@@ -32,6 +32,7 @@
 static void mmc_host_classdev_release(struct device *dev)
 {
         struct mmc_host *host = cls_dev_to_mmc_host(dev);
+        mutex_destroy(&host->slot.lock);
         kfree(host);
 }
 
@@ -327,6 +328,7 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev)
 
         mmc_host_clk_init(host);
 
+        mutex_init(&host->slot.lock);
         host->slot.cd_irq = -EINVAL;
 
         spin_lock_init(&host->lock);