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authorJarod Wilson <jwilson@redhat.com>2008-03-25 16:47:16 -0400
committerStefan Richter <stefanr@s5r6.in-berlin.de>2008-03-27 21:01:14 +0100
commit6b84236d37ef602d1e4f52b27162c20394e83359 (patch)
tree0e383a32e66f7866fb5ac574acfa408b59e2d8cf /mm
parent05dda977f2574c3341abef9b74c27d2b362e1e3a (diff)
firewire: fw-ohci: plug dma memory leak in AR handler
There's an ugly little memory leak in firewire-ohci's ar_context_tasklet(), where we're not freeing up some of the memory we use for each ar_buffer, due to a moving pointer. The problem has been there for a while, but didn't get noticed until after converting the AR routines over to use coherent DMA and I started running into I/O stall- outs with the following message output repeatedly to the console: PCI-DMA: Out of IOMMU space for 53248 bytes at device 0000:04:09.0 Plugging this leak is definitely necessary, but unfortunately, isn't the entire answer to my problem, it only increases the amount of I/O that I can do before hitting the problem. Still working on tracking down the root cause.. Signed-off-by: Jarod Wilson <jwilson@redhat.com> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
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