From: Todd Poynor <toddpoy...@google.com>
Hold a reference on the struct device kobject while a pointer to that
device is in use by gasket.
Reported-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
Signed-off-by: Todd Poynor <toddpoy...@google.com>
---
drivers/staging/gasket/gasket_core.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/gasket/gasket_core.c
b/drivers/staging/gasket/gasket_core.c
index 859a6df9e12df..1dc7273e38734 100644
--- a/drivers/staging/gasket/gasket_core.c
+++ b/drivers/staging/gasket/gasket_core.c
@@ -449,6 +449,7 @@ static int gasket_alloc_dev(
gasket_dev->dev_idx = dev_idx;
snprintf(gasket_dev->kobj_name, GASKET_NAME_MAX, "%s", kobj_name);
gasket_dev->dev = parent;
+ kobject_get(&gasket_dev->dev->kobj);
/* gasket_bar_data is uninitialized. */
gasket_dev->num_page_tables = driver_desc->num_page_tables;
/* max_page_table_size and *page table are uninit'ed */
@@ -487,7 +488,7 @@ static void gasket_free_dev(struct gasket_dev *gasket_dev)
mutex_lock(&internal_desc->mutex);
internal_desc->devs[gasket_dev->dev_idx] = NULL;
mutex_unlock(&internal_desc->mutex);
-
+ kobject_put(&gasket_dev->dev->kobj);
kfree(gasket_dev);
}
--
2.18.0.345.g5c9ce644c3-goog
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