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| author | Ben Hutchings <bhutchings@solarflare.com> | 2011-07-21 15:25:30 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-07-21 15:25:30 -0700 |
| commit | 67ae7cf1eeda777f79259c4c6cb17a0bd28dee71 (patch) | |
| tree | 3644c9018a246df166b220b35d6073efa48a385c /Kbuild | |
| parent | 1511022c9aabf253253e35730a6a3b945a2a53a9 (diff) | |
| download | linux-3.10-67ae7cf1eeda777f79259c4c6cb17a0bd28dee71.tar.gz linux-3.10-67ae7cf1eeda777f79259c4c6cb17a0bd28dee71.tar.bz2 linux-3.10-67ae7cf1eeda777f79259c4c6cb17a0bd28dee71.zip | |
ethtool: Allow zero-length register dumps again
Some drivers (ab)use the ethtool_ops::get_regs operation to expose
only a hardware revision ID. Commit
a77f5db361ed9953b5b749353ea2c7fed2bf8d93 ('ethtool: Allocate register
dump buffer with vmalloc()') had the side-effect of breaking these, as
vmalloc() returns a null pointer for size=0 whereas kmalloc() did not.
For backward-compatibility, allow zero-length dumps again.
Reported-by: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Cc: stable@kernel.org [2.6.37+]
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Kbuild')
0 files changed, 0 insertions, 0 deletions