[PATCH] ANDROID: binder: correct the cmd print for BINDER_WORK_RETURN_ERROR

[宋金时]

In case of the BINDER_WORK_RETURN_ERROR the cmd is no assignment,
so it's value will be old value or dirty value, before modifying
e->cmd, assign the value of the e->cmd to cmd to ensure the correct
print of binder_stat_br.

Signed-off-by: songjinshi <songjinshi@xxxxxxxxxx>
---

diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index 4ffc84d..acd7d44a 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -4086,6 +4086,7 @@
 			struct binder_error *e = container_of(
 					w, struct binder_error, work);
 
+			cmd = e->cmd;
 			WARN_ON(e->cmd == BR_OK);
 			binder_inner_proc_unlock(proc);
 			if (put_user(e->cmd, (uint32_t __user *)ptr))