| commit | e41c0981213f39ecd421d8c1f7334cf04c2122e3 | [log] [tgz] |
|---|---|---|
| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | Wed Dec 04 20:52:49 2013 +0100 |
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | Sun Dec 08 17:16:05 2013 -0800 |
| tree | c29c189f59e04cd6ca0d2c5a9df8c5554c1287ec | |
| parent | 0da3336f19f2a42e9153efa4112d50fd148a8e61 [diff] |
tty: serial: pch: don't crash if DMA enabled but not loaded if the DMA driver isn't loaded "on time" then we crash in the irq handler: | pch_uart 0000:02:0a.4: pch_request_dma:dma_request_channel FAILS(Tx) | BUG: unable to handle kernel NULL pointer dereference at (null) | IP: [<c0676ed9>] pch_uart_interrupt+0x739/0x940 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>