| commit | c85be041065c0be8bc48eda4c45e0319caf1d0e5 | [log] [tgz] |
|---|---|---|
| author | Kangjie Lu <kjlu@umn.edu> | Fri Mar 15 12:16:06 2019 -0500 |
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | Tue Mar 19 15:37:43 2019 +0100 |
| tree | 89fab4c828734cb404957169f6b40c1d1d582653 | |
| parent | 3a10e3dd52e80b9a97a3346020024d17b2c272d6 [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>