This patch causes an error to be returned if the caller attempts to open a
sysfs file in append mode.
This patch applies cleanly to 2.6.11-rc1.
Signed-off-by: Mitch Williams <[EMAIL PROTECTED]>
diff -urpN -X dontdiff linux-2.6.11-clean/fs/sysfs/file.c
linux-2.6.11/fs/sysfs/file.c
--- linux-2.6.11-clean/fs/sysfs/file.c 2004-12-24 13:33:50.000000000 -0800
+++ linux-2.6.11/fs/sysfs/file.c 2005-01-24 16:26:21.000000000 -0800
@@ -275,6 +275,11 @@ static int check_perm(struct inode * ino
if (!ops)
goto Eaccess;
+ /* Is the file is open for append? Sorry, we don't do that. */
+ if (file->f_flags & O_APPEND) {
+ goto Einval;
+ }
+
/* File needs write support.
* The inode's perms must say it's ok,
* and we must have a store method.
-
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