diff options
Diffstat (limited to 'fs/sysfs/file.c')
| -rw-r--r-- | fs/sysfs/file.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c index 5709cede1d75..25b44fe171a3 100644 --- a/fs/sysfs/file.c +++ b/fs/sysfs/file.c @@ -120,6 +120,10 @@ static ssize_t sysfs_kf_read(struct kernfs_open_file *of, char *buf, len = ops->show(kobj, of->kn->priv, buf); if (len < 0) return len; + if (len >= (ssize_t)PAGE_SIZE) { + printk("fill_read_buffer: %pS returned bad count\n", ops->show); + len = PAGE_SIZE - 1; + } if (pos) { if (len <= pos) return 0; |