Paul Burton d04f1b44f6 MIPS: WARN_ON invalid DMA cache maintenance, not BUG_ON
[ Upstream commit d4da0e97baea8768b3d66ccef3967bebd50dfc3b ]

If a driver causes DMA cache maintenance with a zero length then we
currently BUG and kill the kernel. As this is a scenario that we may
well be able to recover from, WARN & return in the condition instead.

Signed-off-by: Paul Burton <paul.burton@mips.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/14623/
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-19 22:48:59 +02:00
..
2018-09-19 22:48:56 +02:00
2016-09-24 10:07:43 +02:00
2018-06-06 16:46:20 +02:00
2015-11-11 09:16:10 -08:00