[PATCH AUTOSEL 5.10 062/217] binder: change error code from postive to negative in binder_transaction

Sasha Levin
2020-12-23T03:07:15Z

From: Zhang Qilong <zhangqilong3@huawei.com>

[ Upstream commit 88f6c77927e4aee04e0193fd94e13a55753a72b0 ]

Depending on the context, the error return value
here (extra_buffers_size < added_size) should be
negative.

Acked-by: Martijn Coenen <maco@android.com>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Link: https://lore.kernel.org/r/20201026110314.135481-1-zhangqilong3@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/android/binder.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index b5117576792bc..8bbfb9124fa29 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -3103,7 +3103,7 @@ static void binder_transaction(struct binder_proc *proc,
if (extra_buffers_size < added_size) {
/* integer overflow of extra_buffers_size */
return_error = BR_FAILED_REPLY;
- return_error_param = EINVAL;
+ return_error_param = -EINVAL;
return_error_line = __LINE__;
goto err_bad_extra_size;
}
--
2.27.0