linux-kernel - [PATCH 1/5] staging/vchi: Fix build error in debugfs ops on aarch64.

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Date:   Mon, 17 Oct 2016 12:44:02 -0700
From:   Eric Anholt <eric@...olt.net>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-rpi-kernel@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Stephen Warren <swarren@...dotorg.org>,
        Lee Jones <lee@...nel.org>,
        bcm-kernel-feedback-list@...adcom.com,
        Dom Cobley <popcornmix@...il.com>,
        Eric Anholt <eric@...olt.net>
Subject: [PATCH 1/5] staging/vchi: Fix build error in debugfs ops on aarch64.

file_operations.write returns a ssize_t, which worked out fine on 32
bit but errors out on 64 bit.

Signed-off-by: Eric Anholt <eric@...olt.net>
---
 drivers/staging/vc04_services/interface/vchiq_arm/vchiq_debugfs.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_debugfs.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_debugfs.c
index 7e032130d967..f07cd4448ddf 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_debugfs.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_debugfs.c
@@ -120,7 +120,7 @@ static int debugfs_log_open(struct inode *inode, struct file *file)
 	return single_open(file, debugfs_log_show, inode->i_private);
 }
 
-static int debugfs_log_write(struct file *file,
+static ssize_t debugfs_log_write(struct file *file,
 	const char __user *buffer,
 	size_t count, loff_t *ppos)
 {
@@ -229,7 +229,7 @@ static int debugfs_trace_open(struct inode *inode, struct file *file)
 	return single_open(file, debugfs_trace_show, inode->i_private);
 }
 
-static int debugfs_trace_write(struct file *file,
+static ssize_t debugfs_trace_write(struct file *file,
 	const char __user *buffer,
 	size_t count, loff_t *ppos)
 {
-- 
2.9.3