diff options
| -rw-r--r-- | drivers/hid/hidraw.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c index 47d70c523d93..9eaf6ae5f97f 100644 --- a/drivers/hid/hidraw.c +++ b/drivers/hid/hidraw.c @@ -244,6 +244,10 @@ static long hidraw_ioctl(struct file *file, unsigned int cmd, mutex_lock(&minors_lock); dev = hidraw_table[minor]; + if (!dev) { + ret = -ENODEV; + goto out; + } switch (cmd) { case HIDIOCGRDESCSIZE: @@ -317,6 +321,7 @@ static long hidraw_ioctl(struct file *file, unsigned int cmd, ret = -ENOTTY; } +out: mutex_unlock(&minors_lock); return ret; } |
