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| author | Nicholas Piggin <[email protected]> | 2018-09-09 05:39:16 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2018-09-10 16:04:31 +0000 |
| commit | 7f2bf7840b74a160f908db83bc8829f8de10629b (patch) | |
| tree | 2a34c7484d8288d850e3343244f46a570bf851ce /tools/perf/scripts/python/sched-migration.py | |
| parent | tty: hvc: hvc_poll() fix read loop batching (diff) | |
| download | kernel-7f2bf7840b74a160f908db83bc8829f8de10629b.tar.gz kernel-7f2bf7840b74a160f908db83bc8829f8de10629b.zip | |
tty: hvc: hvc_write() fix break condition
Commit 550ddadcc758 ("tty: hvc: hvc_write() may sleep") broke the
termination condition in case the driver stops accepting characters.
This can result in unnecessary polling of the busy driver.
Restore it by testing the hvc_push return code.
Tested-by: Matteo Croce <[email protected]>
Tested-by: Jason Gunthorpe <[email protected]>
Tested-by: Leon Romanovsky <[email protected]>
Signed-off-by: Nicholas Piggin <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/sched-migration.py')
0 files changed, 0 insertions, 0 deletions