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(parent: fe852bc) | patch
serial: protect access to serial rx buffer
authorPatrick Delaunay <patrick.delaunay@st.com>
Fri, 3 Aug 2018 11:38:43 +0000 (13:38 +0200)
committerTom Rini <trini@konsulko.com>
Tue, 11 Sep 2018 00:20:34 +0000 (20:20 -0400)
commitd3bb7858545fa54ff3c591570f1d36234ecde2bf
tree38ccac62ceb5957d25a71707c3423b2fde263d9atree | snapshot
parentfe852bc109f13664b9d733501f2c4ae33a4c7d3ecommit | diff
serial: protect access to serial rx buffer

Add test to avoid access to rx buffer when this buffer is empty.
In this case directly call getc() function to avoid issue when tstc()
is not called.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
drivers/serial/serial-uclass.c diff | blob | history
Domain: System / Kernel;