Larry Finger e9538cf4f9 rtlwifi: Fix error when accessing unmapped memory in skb
These drivers use 9100-byte receive buffers, thus allocating an skb requires
an O(3) memory allocation. Under heavy memory loads and fragmentation, such
a request can fail. Previous versions of the driver have dropped the packet
and reused the old buffer; however, the new version introduced a bug in that
it released the old buffer before trying to allocate a new one. The previous
method is implemented here. The skb is unmapped before any attempt is made to
allocate another.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org>  [v3.18]
Reported-by: Eric Biggers <ebiggers3@gmail.com>
Cc: Eric Biggers <ebiggers3@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-05 10:05:44 +02:00
..
2014-12-29 21:24:13 +01:00
2014-12-14 16:10:09 -08:00
2014-12-14 16:10:09 -08:00
2014-12-14 16:10:09 -08:00
2014-12-14 16:10:09 -08:00
2014-12-14 16:10:09 -08:00
2014-12-14 16:10:09 -08:00
2014-12-14 16:10:09 -08:00
2014-12-14 16:43:47 -08:00
2014-12-14 16:10:09 -08:00
2014-12-15 18:06:13 -08:00
2014-12-20 13:42:57 -08:00
2014-12-14 16:10:09 -08:00
2014-12-17 09:59:26 -08:00
2014-12-14 16:10:09 -08:00
2014-12-19 12:57:45 -08:00
2014-12-17 09:59:26 -08:00
2014-12-16 14:53:01 -08:00
2014-12-14 16:10:09 -08:00
2014-12-18 20:24:55 -08:00
2014-12-17 10:10:51 -08:00
2014-12-29 13:24:38 -08:00
2014-12-14 16:10:09 -08:00
2014-12-14 16:10:09 -08:00
2014-12-14 16:10:09 -08:00
2014-12-20 13:42:57 -08:00
2014-12-20 13:42:57 -08:00
2014-12-14 16:43:47 -08:00
2014-12-20 13:42:57 -08:00
2014-12-17 10:44:22 -08:00
2014-12-14 16:43:47 -08:00
2014-12-15 18:06:13 -08:00
2014-12-15 18:06:13 -08:00