USB: Sane memory allocation in option driver

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The option driver
- violates DMA coherency rules
- allocates ~16500 bytes in one chunk
This patch splits out the buffers and uses __get_free_page() to avoid
higher order allocations.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Acked-By: Matthias Urlichs <matthias@urlichs.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

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Oliver Neukum 2008-02-01 13:58:52 +01:00 • committed by Greg Kroah-Hartman

parent bbc5d276ec

commit 2129c4e1b4

1 changed files with 30 additions and 3 deletions

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33

drivers/usb/serial/option.c

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