diff options
| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2013-12-04 20:52:49 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-12-09 02:16:05 +0100 |
| commit | e41c0981213f39ecd421d8c1f7334cf04c2122e3 (patch) | |
| tree | c29c189f59e04cd6ca0d2c5a9df8c5554c1287ec /drivers/tty/serial/8250/8250_dw.c | |
| parent | serial: samsung: move clock deactivation below uart registration (diff) | |
| download | linux-e41c0981213f39ecd421d8c1f7334cf04c2122e3.tar.xz linux-e41c0981213f39ecd421d8c1f7334cf04c2122e3.zip | |
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>
Diffstat (limited to 'drivers/tty/serial/8250/8250_dw.c')
0 files changed, 0 insertions, 0 deletions