cdev_by_name() returns a cdev without increasing its reference count. In
order to maintain a proper reference counting use cdev_open_by_name()
instead and make sure it's closed afterwards when no longer needed.
Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
common/bootm.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/common/bootm.c b/common/bootm.c
index c851ab0456..357537c54e 100644
--- a/common/bootm.c
+++ b/common/bootm.c
@@ -760,7 +760,7 @@ int bootm_boot(struct bootm_data *bootm_data)
if (bootm_data->root_dev) {
const char *root_dev_name = devpath_to_name(bootm_data->root_dev);
- const struct cdev *root_cdev = cdev_by_name(root_dev_name);
+ struct cdev *root_cdev = cdev_open_by_name(root_dev_name, O_RDONLY);
rootarg = cdev_get_linux_rootarg(root_cdev);
if (!rootarg) {
@@ -773,6 +773,9 @@ int bootm_boot(struct bootm_data *bootm_data)
pr_err("%s doesn't have a PARTUUID, cannot set root= option\n",
root_dev_name);
}
+
+ if (root_cdev)
+ cdev_close(root_cdev);
} else {
rootarg = path_get_linux_rootarg(data->os_file);
}
--
2.39.2
