dp83640: Fix length check for event timestamp status messages
authorChristian Riesch <christian.riesch@omicron.at>
Thu, 21 Aug 2014 13:17:04 +0000 (15:17 +0200)
committerDavid S. Miller <davem@davemloft.net>
Fri, 22 Aug 2014 19:33:48 +0000 (12:33 -0700)
commit13322f2e664333b40ea7c71df8785e6f4bba1e68
treec5e1908dee1dbef590c83cd6a188a4927e1da80c
parentb4834c86e11bafc2bf7d3af6a6a5d9ea48b54b41
dp83640: Fix length check for event timestamp status messages

Event timestamp status messages have a variable length, ranging from
1 to 5 words (16 bit words). The current code however requires
a minimum message length of sizeof(*phy_txts). In most cases this
condition is fulfilled due to padding bytes. However, if several events
are signaled in a single message, padding bytes may not be present.
For short event timestamp status messages, the length check will fail,
and the event timestamp will be dropped.

Signed-off-by: Christian Riesch <christian.riesch@omicron.at>
Cc: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/phy/dp83640.c