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Commit 7121064b authored by Dan Carpenter's avatar Dan Carpenter Committed by Linus Torvalds
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configfs: use capped length for ->store_attribute() 



The difference between "count" and "len" is that "len" is capped at
4095.  Changing it like this makes it match how sysfs_write_file() is
implemented.

This is a static analysis patch.  I haven't found any store_attribute()
functions where this change makes a difference.

Signed-off-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
Acked-by: default avatarJoel Becker <jlbec@evilplan.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 3b1f9f53

fs/configfs/file.c

+1 −1
Original line number Diff line number Diff line
@@ -203,7 +203,7 @@ configfs_write_file(struct file *file, const char __user *buf, size_t count, lof 
	mutex_lock(&buffer->mutex);

	len = fill_write_buffer(buffer, buf, count);

	if (len > 0)

		len = flush_write_buffer(file->f_path.dentry, buffer, count);

		len = flush_write_buffer(file->f_path.dentry, buffer, len);

	if (len > 0)

		*ppos += len;

	mutex_unlock(&buffer->mutex);