diff options
| author | Alexey Khoroshilov <khoroshilov@ispras.ru> | 2014-07-10 19:31:41 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-07-11 17:33:49 -0700 |
| commit | 22505b258be0c112b71ef5a794579965c540188f (patch) | |
| tree | d502b50315ff35067996811585e07f08502747fc /drivers/staging/gdm724x | |
| parent | 4f4756fc81a22e9f6bc600b1ed6c10eb2a5162f0 (diff) | |
| download | linux-22505b258be0c112b71ef5a794579965c540188f.tar.bz2 | |
staging: gdm724x: fix leak at failure path in init_usb()
If an allocation in init_usb() failed, it returns without
deallocation of already allocated resources.
The patch fix it and replaces GFP_ATOMIC by GFP_KERNEL in
alloc_tx_sdu_struct() and alloc_rx_struct() as long as
they are called from probe only.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/gdm724x')
| -rw-r--r-- | drivers/staging/gdm724x/gdm_usb.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/staging/gdm724x/gdm_usb.c b/drivers/staging/gdm724x/gdm_usb.c index ee6e40facca7..ea89d530ff3f 100644 --- a/drivers/staging/gdm724x/gdm_usb.c +++ b/drivers/staging/gdm724x/gdm_usb.c @@ -125,11 +125,11 @@ static struct usb_tx_sdu *alloc_tx_sdu_struct(void) { struct usb_tx_sdu *t_sdu; - t_sdu = kzalloc(sizeof(struct usb_tx_sdu), GFP_ATOMIC); + t_sdu = kzalloc(sizeof(struct usb_tx_sdu), GFP_KERNEL); if (!t_sdu) return NULL; - t_sdu->buf = kmalloc(SDU_BUF_SIZE, GFP_ATOMIC); + t_sdu->buf = kmalloc(SDU_BUF_SIZE, GFP_KERNEL); if (!t_sdu->buf) { kfree(t_sdu); return NULL; @@ -183,14 +183,14 @@ static struct usb_rx *alloc_rx_struct(void) struct usb_rx *r = NULL; int ret = 0; - r = kmalloc(sizeof(struct usb_rx), GFP_ATOMIC); + r = kmalloc(sizeof(struct usb_rx), GFP_KERNEL); if (!r) { ret = -ENOMEM; goto out; } - r->urb = usb_alloc_urb(0, GFP_ATOMIC); - r->buf = kmalloc(RX_BUF_SIZE, GFP_ATOMIC); + r->urb = usb_alloc_urb(0, GFP_KERNEL); + r->buf = kmalloc(RX_BUF_SIZE, GFP_KERNEL); if (!r->urb || !r->buf) { ret = -ENOMEM; goto out; @@ -366,6 +366,7 @@ static int init_usb(struct lte_udev *udev) INIT_DELAYED_WORK(&udev->work_rx, do_rx); return 0; fail: + release_usb(udev); return ret; } |