From: Jon Smirl <jonsmirl@gmail.com>
Date: Tue, 14 Jun 2005 13:54:54 +0000 (-0400)
Subject: [PATCH] SYSFS: fix PAGE_SIZE check
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9d9d27fb651a7c95a46f276bacb4329db47470a6;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

[PATCH] SYSFS: fix PAGE_SIZE check

Without this change I can't set an attribute exactly PAGE_SIZE in
length. There is no need for zero termination because the interface
uses lengths.

From: Jon Smirl <jonsmirl@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 1481cae7d99a..849aac115460 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -182,7 +182,7 @@ fill_write_buffer(struct sysfs_buffer * buffer, const char __user * buf, size_t
 		return -ENOMEM;
 
 	if (count >= PAGE_SIZE)
-		count = PAGE_SIZE - 1;
+		count = PAGE_SIZE;
 	error = copy_from_user(buffer->page,buf,count);
 	buffer->needs_read_fill = 1;
 	return error ? -EFAULT : count;