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tty: vt: fix 20 vs 0x20 typo in EScsiignore

The if (c >= 20 && c <= 0x3f) test added in commit 7a99565f8732 is
wrong. 20 is DC4 in ascii and it makes no sense to consider that as the
bottom limit. Instead, it should be 0x20 as in the other test in
the commit above. This is supposed to NOT change anything as we handle
interesting 20-0x20 asciis far before this if.

So for sakeness, change to 0x20 (which is SPACE).

Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Fixes: 7a99565f8732 ("vt: ignore csi sequences with intermediate characters.")
Cc: Martin Hostettler <textshell@uchuujin.de>
Link: https://lore.kernel.org/all/ZaP45QY2WEsDqoxg@neutronstar.dyndns.org/
Tested-by: Helge Deller <deller@gmx.de> # parisc STI console
Link: https://lore.kernel.org/r/20240122110401.7289-4-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

authored by

Jiri Slaby (SUSE) and committed by
Greg Kroah-Hartman 0e6a92f6 b041c605

+1 -1
+1 -1
drivers/tty/vt/vt.c
··· 2469 2469 } 2470 2470 return; 2471 2471 case EScsiignore: 2472 - if (c >= 20 && c <= 0x3f) 2472 + if (c >= 0x20 && c <= 0x3f) 2473 2473 return; 2474 2474 vc->vc_state = ESnormal; 2475 2475 return;