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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2021-05-25 11:24:42 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2021-05-25 11:24:42 -0700
commitcbb245239282870bc6f54d5137dfe0f84b48ea72 (patch)
treedcdd8041d7bb5cddacfe086785dd370aa1a7a6ea /kernel/usermode_driver.c
parent94a332bd8626f6c32e7ba5835dd17eeddbb76e89 (diff)
parent9f4ad9e425a1d3b6a34617b8ea226d56a119a717 (diff)
Merge tag 'v5.12' into next
Sync up with mainline to get the latest device tree bindings and kernel APIs.
Diffstat (limited to 'kernel/usermode_driver.c')
-rw-r--r--kernel/usermode_driver.c21
1 files changed, 15 insertions, 6 deletions
diff --git a/kernel/usermode_driver.c b/kernel/usermode_driver.c
index 0b35212ffc3d..bb7bb3b478ab 100644
--- a/kernel/usermode_driver.c
+++ b/kernel/usermode_driver.c
@@ -139,13 +139,22 @@ static void umd_cleanup(struct subprocess_info *info)
struct umd_info *umd_info = info->data;
/* cleanup if umh_setup() was successful but exec failed */
- if (info->retval) {
- fput(umd_info->pipe_to_umh);
- fput(umd_info->pipe_from_umh);
- put_pid(umd_info->tgid);
- umd_info->tgid = NULL;
- }
+ if (info->retval)
+ umd_cleanup_helper(umd_info);
+}
+
+/**
+ * umd_cleanup_helper - release the resources which were allocated in umd_setup
+ * @info: information about usermode driver
+ */
+void umd_cleanup_helper(struct umd_info *info)
+{
+ fput(info->pipe_to_umh);
+ fput(info->pipe_from_umh);
+ put_pid(info->tgid);
+ info->tgid = NULL;
}
+EXPORT_SYMBOL_GPL(umd_cleanup_helper);
/**
* fork_usermode_driver - fork a usermode driver