From: Zhang Qilong <zhangqilo...@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 <m...@android.com>
Acked-by: Christian Brauner <christian.brau...@ubuntu.com>
Signed-off-by: Zhang Qilong <zhangqilo...@huawei.com>
Link: https://lore.kernel.org/r/20201026110314.135481-1-zhangqilo...@huawei.com
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
Signed-off-by: Sasha Levin <sas...@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

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