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| author | Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> | 2015-07-22 01:31:59 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-07-21 22:34:27 -0700 |
| commit | d8b48911fd249bc1a3431a9515619403c96d6af3 (patch) | |
| tree | 8c2c420f08b034b03499ac9d8a0dd27d73f0a6ab /net/mac80211 | |
| parent | a46fa260f6f5e8f80a725b28e4aee5a04d1bd79e (diff) | |
| download | linux-stable-d8b48911fd249bc1a3431a9515619403c96d6af3.tar.gz linux-stable-d8b48911fd249bc1a3431a9515619403c96d6af3.tar.bz2 linux-stable-d8b48911fd249bc1a3431a9515619403c96d6af3.zip | |
ravb: fix ring memory allocation
The driver is written as if it can adapt to a low memory situation allocating
less RX skbs and TX aligned buffers than the respective RX/TX ring sizes. In
reality though the driver would malfunction in this case. Stop being overly
smart and just fail in such situation -- this is achieved by moving the memory
allocation from ravb_ring_format() to ravb_ring_init().
We leave dma_map_single() calls in place but make their failure non-fatal
by marking the corresponding RX descriptors with zero data size which should
prevent DMA to an invalid addresses.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/mac80211')
0 files changed, 0 insertions, 0 deletions