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| /openbmc/linux/drivers/tty/serial/ |
| H A D | atmel_serial.c | diff c85be041065c0be8bc48eda4c45e0319caf1d0e5 Fri Mar 15 12:16:06 CDT 2019 Kangjie Lu <kjlu@umn.edu> tty: atmel_serial: fix a potential NULL pointer dereference
In case dmaengine_prep_dma_cyclic fails, the fix returns a proper
error code to avoid NULL pointer dereference.
Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Fixes: 34df42f59a60 ("serial: at91: add rx dma support")
Acked-by: Richard Genoud <richard.genoud@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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