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| author | Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com> | 2017-01-26 14:29:27 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-01-27 00:41:05 +0100 |
| commit | a47b70ea86bdeb3091341f5ae3ef580f1a1ad822 (patch) | |
| tree | 486911b0dd44dff74cd19814e24617a4f1c0ae0b /lib/iommu-helper.c | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf (diff) | |
| download | linux-a47b70ea86bdeb3091341f5ae3ef580f1a1ad822.tar.xz linux-a47b70ea86bdeb3091341f5ae3ef580f1a1ad822.zip | |
ravb: unmap descriptors when freeing rings
"swiotlb buffer is full" errors occur after repeated initialisation of a
device - f.e. suspend/resume or ip link set up/down. This is because memory
mapped using dma_map_single() in ravb_ring_format() and ravb_start_xmit()
is not released. Resolve this problem by unmapping descriptors when
freeing rings.
Fixes: c156633f1353 ("Renesas Ethernet AVB driver proper")
Signed-off-by: Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com>
[simon: reworked]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'lib/iommu-helper.c')
0 files changed, 0 insertions, 0 deletions