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(parent: 3a10e3d) | patch
tty: atmel_serial: fix a potential NULL pointer dereference
authorKangjie Lu <kjlu@umn.edu>
Fri, 15 Mar 2019 17:16:06 +0000 (12:16 -0500)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 19 Mar 2019 14:37:43 +0000 (15:37 +0100)
commitc85be041065c0be8bc48eda4c45e0319caf1d0e5
tree89fab4c828734cb404957169f6b40c1d1d582653tree | snapshot
parent3a10e3dd52e80b9a97a3346020024d17b2c272d6commit | diff
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>
drivers/tty/serial/atmel_serial.c diff | blob | history
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