USB: overhaul of mos7840 driver

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This fixes:

- breaking DMA rules about buffers
- usage of _global_ variables to save a single device's attributes
- racy access to urb->status
- smp monotonity issue with statistics
- use of one buffer for many simultaneous URBs
- error handling introduced
- several instances of following NULL pointers
- use after free
- unnecessary GFP_ATOMIC
- GFP_KERNEL in interrupt
- various cleanups
- write room granularity issue that bit cdc-acm
- race in shutdown

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

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This commit is contained in:

Oliver Neukum 2007-03-16 20:28:28 +01:00 • committed by Greg Kroah-Hartman

parent 96c706ed1c

commit 0de9a7024e

1 changed files with 145 additions and 88 deletions

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drivers/usb/serial/mos7840.c

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