| Message ID | 1415695247-30442-1-git-send-email-sudipm.mukherjee@gmail.com |
|---|---|
| State | Accepted, archived |
| Delegated to: | David Miller |
| Headers | show |
From: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Date: Tue, 11 Nov 2014 14:10:47 +0530 > we were dereferencing dev to initialize pdata. but just after that we > have a BUG_ON(!dev). so we were basically dereferencing the pointer > first and then tesing it for NULL. > > Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> > --- > > change in v2: suspend_flags is initialised after pdata is initialised. > v1 had a very silly but serious mistake of making pdata NULL, and trying > to dereference it. > sorry again for that. This looks better, applied, thanks. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c index d07bf4c..26423ad 100644 --- a/drivers/net/usb/smsc95xx.c +++ b/drivers/net/usb/smsc95xx.c @@ -1670,12 +1670,14 @@ done: static int smsc95xx_resume(struct usb_interface *intf) { struct usbnet *dev = usb_get_intfdata(intf); - struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]); - u8 suspend_flags = pdata->suspend_flags; + struct smsc95xx_priv *pdata; + u8 suspend_flags; int ret; u32 val; BUG_ON(!dev); + pdata = (struct smsc95xx_priv *)(dev->data[0]); + suspend_flags = pdata->suspend_flags; netdev_dbg(dev->net, "resume suspend_flags=0x%02x\n", suspend_flags);
we were dereferencing dev to initialize pdata. but just after that we have a BUG_ON(!dev). so we were basically dereferencing the pointer first and then tesing it for NULL. Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> --- change in v2: suspend_flags is initialised after pdata is initialised. v1 had a very silly but serious mistake of making pdata NULL, and trying to dereference it. sorry again for that. drivers/net/usb/smsc95xx.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)