diff options
Diffstat (limited to 'drivers/hid/hidraw.c')
| -rw-r--r-- | drivers/hid/hidraw.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c index c79578b5a788..cf7d6d58e79f 100644 --- a/drivers/hid/hidraw.c +++ b/drivers/hid/hidraw.c @@ -259,7 +259,6 @@ static int hidraw_open(struct inode *inode, struct file *file) mutex_lock(&minors_lock); if (!hidraw_table[minor]) { - kfree(list); err = -ENODEV; goto out_unlock; } @@ -272,8 +271,10 @@ static int hidraw_open(struct inode *inode, struct file *file) dev = hidraw_table[minor]; if (!dev->open++) { err = hid_hw_power(dev->hid, PM_HINT_FULLON); - if (err < 0) + if (err < 0) { + dev->open--; goto out_unlock; + } err = hid_hw_open(dev->hid); if (err < 0) { @@ -285,6 +286,8 @@ static int hidraw_open(struct inode *inode, struct file *file) out_unlock: mutex_unlock(&minors_lock); out: + if (err < 0) + kfree(list); return err; } @@ -510,13 +513,12 @@ void hidraw_disconnect(struct hid_device *hid) { struct hidraw *hidraw = hid->hidraw; + mutex_lock(&minors_lock); hidraw->exist = 0; device_destroy(hidraw_class, MKDEV(hidraw_major, hidraw->minor)); - mutex_lock(&minors_lock); hidraw_table[hidraw->minor] = NULL; - mutex_unlock(&minors_lock); if (hidraw->open) { hid_hw_close(hid); @@ -524,6 +526,7 @@ void hidraw_disconnect(struct hid_device *hid) } else { kfree(hidraw); } + mutex_unlock(&minors_lock); } EXPORT_SYMBOL_GPL(hidraw_disconnect); |