diff options
| author | Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org> | 2019-06-10 19:23:08 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-08-04 09:34:56 +0200 |
| commit | e14829d6f80f635dacb84615b67666dfd6457e26 (patch) | |
| tree | db74a74233831e8b423db67af2129cad90e2997c /include/linux | |
| parent | d6ad3a06c646b5fa6b0d92df4a31ae87204c6d20 (diff) | |
tty: serial: msm_serial: avoid system lockup condition
[ Upstream commit ba3684f99f1b25d2a30b6956d02d339d7acb9799 ]
The function msm_wait_for_xmitr can be taken with interrupts
disabled. In order to avoid a potential system lockup - demonstrated
under stress testing conditions on SoC QCS404/5 - make sure we wait
for a bounded amount of time.
Tested on SoC QCS404.
Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/linux')
0 files changed, 0 insertions, 0 deletions