linux-kernel - [PATCH 02/13] android: binder: fix duplicate error return.

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Date:	Thu, 28 May 2015 16:08:20 -0700
From:	Riley Andrews <riandrews@...roid.com>
To:	linux-kernel@...r.kernel.org,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Arve Hjønnevåg <arve@...roid.com>,
	Riley Andrews <riandrews@...roid.com>,
	devel@...verdev.osuosl.org
Subject: [PATCH 02/13] android: binder: fix duplicate error return.

Duplicate errors can be returned to userspace when the thread
error code is left set when the read buffer runs out of space.

Signed-off-by: Riley Andrews <riandrews@...roid.com>
---
 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 f1a26d9..2069759 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -2167,9 +2167,9 @@ retry:
 				return -EFAULT;
 			ptr += sizeof(uint32_t);
 			binder_stat_br(proc, thread, thread->return_error2);
+			thread->return_error2 = BR_OK;
 			if (ptr == end)
 				goto done;
-			thread->return_error2 = BR_OK;
 		}
 		if (put_user(thread->return_error, (uint32_t __user *)ptr))
 			return -EFAULT;
-- 
2.2.0.rc0.207.ga3a616c

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