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(parent: 0059202) | patch
pmac_zilog,kdb: Fix console poll hook to return instead of loop
authorJason Wessel <jason.wessel@windriver.com>
Sun, 12 Aug 2012 12:16:43 +0000 (07:16 -0500)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 16 Aug 2012 19:20:20 +0000 (12:20 -0700)
commit38f8eefccf3a23c4058a570fa2938a4f553cf8e0
tree6cfaa19aa7470639e3d5ab54694200d93c4b4005tree | snapshot
parent00592021010ad86d3b26bac7034034f6af145a2ccommit | diff
pmac_zilog,kdb: Fix console poll hook to return instead of loop

kdb <-> kgdb transitioning does not work properly with this UART
driver because the get character routine loops indefinitely as opposed
to returning NO_POLL_CHAR per the expectation of the KDB I/O driver
API.

The symptom is a kernel hang when trying to switch debug modes.

Cc: Alan Cox <alan@linux.intel.com>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/serial/pmac_zilog.c diff | blob | history
Domain: System / Uncategorized;