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Bug #1237

open

68_1 model is incomplete without usb_get_urb()

Added by Alexey Khoroshilov over 13 years ago. Updated over 13 years ago.

Status:
New
Priority:
Normal
Assignee:
Vadim Mutilin
Category:
Rules and Models
Start date:
05/19/2011
Due date:
% Done:

0%

Estimated time:
Detected in build:
3a5698a
Platform:
Published in build:

Description

usb_get_urb() and usb_free_urb() are dual functions, so it is not correct to have just one of them in the model.

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 #1

Updated by Vadim Mutilin over 13 years ago

The functions usb_get_urb and usb_free_urb are not dual actually, because usb_free_urb may be called without usb_get_urb
and the function usb_get_urb does not allocates memory, so it can't be called without usb_alloc_urb.
Therefore the topic of the bug is correct, but the right description of the bug is that for each call usb_get_urb() with nonzero parameter there are must be the call to usb_free_urb with the same parameter.

If you have any unsafes with usb_get_urb, it will be helpful to check that the call to usb_alloc_urb was performed before usb_get_urb. Without it the false unsafes will not go out even with the new model function.

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 #2

Updated by Pavel Shved over 13 years ago

  • Category set to Rules and Models
  • Assignee set to Vadim Mutilin
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