firewire: ohci: avoid reallocation of AR buffers

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Freeing an AR buffer page just to allocate a new page immediately
afterwards is not only a pointless effort but also dangerous because
the allocation can fail, which would result in an oops later.

Split ar_context_add_page() into two functions so that we can reuse
the old page directly.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Tested-by: Maxim Levitsky <maximlevitsky@gmail.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

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Clemens Ladisch 2010-10-25 11:42:42 +02:00 • committed by Stefan Richter

parent a1f805e5e7

commit 837596a61b

1 changed files with 16 additions and 12 deletions

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drivers/firewire/ohci.c

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