Description: tty: tty_buffer: Fix the softlockup issue in flush_to_ldisc
References:
Notes:
 carnil> First introducing commit could not be determined.
Bugs:
upstream: released (5.16-rc1) [3968ddcf05fb4b9409cd1859feb06a5b0550a1c1]
6.8-upstream-stable: N/A "Fixed before branching point"
6.7-upstream-stable: N/A "Fixed before branching point"
6.6-upstream-stable: N/A "Fixed before branching point"
6.1-upstream-stable: N/A "Fixed before branching point"
5.10-upstream-stable: released (5.10.82) [77e9fed33056f2a88eba9dd4d2d5412f0c7d1f41]
4.19-upstream-stable: released (4.19.218) [4f300f47dbcf9c3d4b2ea76c8554c8f360400725]
sid: released (5.15.5-1)
6.1-bookworm-security: N/A "Fixed before branching point"
5.10-bullseye-security: released (5.10.84-1)
4.19-buster-security: released (4.19.232-1)