diff options
| -rw-r--r-- | drivers/staging/greybus/camera.c | 13 |
1 files changed, 3 insertions, 10 deletions
diff --git a/drivers/staging/greybus/camera.c b/drivers/staging/greybus/camera.c index b570e13394ac..cdbb42cd413b 100644 --- a/drivers/staging/greybus/camera.c +++ b/drivers/staging/greybus/camera.c @@ -1120,16 +1120,9 @@ static ssize_t gb_camera_debugfs_write(struct file *file, if (len > 1024) return -EINVAL; - kbuf = kmalloc(len + 1, GFP_KERNEL); - if (!kbuf) - return -ENOMEM; - - if (copy_from_user(kbuf, buf, len)) { - ret = -EFAULT; - goto done; - } - - kbuf[len] = '\0'; + kbuf = memdup_user_nul(buf, len); + if (IS_ERR(kbuf)) + return PTR_ERR(kbuf); ret = op->execute(gcam, kbuf, len); |