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author | Eric Biggers <ebiggers@google.com> | 2020-02-24 00:03:26 -0800 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-03-12 21:43:49 +0100 |
commit | 1aa6e058dd6cd04471b1f21298270014daf48ac9 (patch) | |
tree | 0ae1611858c2724c808c20cd2d0e1c12c3920c66 /drivers/tty/serial/qcom_geni_serial.c | |
parent | vt: drop redundant might_sleep() in do_con_write() (diff) | |
download | linux-dev-1aa6e058dd6cd04471b1f21298270014daf48ac9.tar.xz linux-dev-1aa6e058dd6cd04471b1f21298270014daf48ac9.zip |
vt: vt_ioctl: remove unnecessary console allocation checks
The vc_cons_allocated() checks in vt_ioctl() and vt_compat_ioctl() are
unnecessary because they can only be reached by calling ioctl() on an
open tty, which implies the corresponding virtual console is allocated.
And even if the virtual console *could* be freed concurrently, then
these checks would be broken since they aren't done under console_lock,
and the vc_data is dereferenced before them anyway.
So, remove these unneeded checks to avoid confusion.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Link: https://lore.kernel.org/r/20200224080326.295046-1-ebiggers@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/qcom_geni_serial.c')
0 files changed, 0 insertions, 0 deletions