Greg KH wrote:
On Mon, Jun 12, 2006 at 06:12:58PM -0400, Mark Lord wrote:
..
Eg. If usb_submit_urb() ever fails again (low on memory, etc..)
inside pl2303_open(), will we be back with the same bug?
What's the *real* actual bug here?
There are two of them.
The fact that the urb submission in the pl2303 driver fails, and is now
handled properly is fixed in the pl2303 patch.
The fact that we can (hopefully) handle scheduling TT in the EHCI driver
fixes the real problem with plugging slow or full speed devices into a
USB 2.0 hub (not root hub). That's fixed by the tt patch.
So we should have finally covered both of them now.
Yes, agreed.
So if modify pl2303_open() to have it simulate -ENOMEM from usb_submit_urb(),
then this should not crash the entire USB subsystem. Right?
Ditto if it happens due to low-memory, rather than me hacking the code to test it?
Cheers
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