diff options
| author | Jiri Slaby <jslaby@suse.cz> | 2016-03-31 10:08:14 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-04-30 18:26:55 +0200 |
| commit | 182846a00f489849c55d113954f0c4a8a286ca39 (patch) | |
| tree | 176092eb6f596246b49083174ebe46a61741a275 /drivers/tty | |
| parent | serial: samsung: Reorder the sequence of clock control when call s3c24xx_seri... (diff) | |
| download | linux-182846a00f489849c55d113954f0c4a8a286ca39.tar.xz linux-182846a00f489849c55d113954f0c4a8a286ca39.zip | |
tty: vt, remove reduntant check
MAX_NR_CONSOLES and MAX_NR_USER_CONSOLES are both 63 since they were
introduced in 1.1.54. And since vc_allocate does:
if (currcons >= MAX_NR_CONSOLES)
return -ENXIO;
if (!vc_cons[currcons].d) {
if (currcons >= MAX_NR_USER_CONSOLES && !capable(CAP_SYS_RESOURCE))
return -EPERM;
}
the second check is pointless. Remove both the check and the macro
MAX_NR_USER_CONSOLES.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Reported-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/vt/vt.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c index 3e3c7575e92d..90305d569c06 100644 --- a/drivers/tty/vt/vt.c +++ b/drivers/tty/vt/vt.c @@ -768,10 +768,6 @@ int vc_allocate(unsigned int currcons) /* return 0 on success */ struct vc_data *vc; struct vt_notifier_param param; - /* prevent users from taking too much memory */ - if (currcons >= MAX_NR_USER_CONSOLES && !capable(CAP_SYS_RESOURCE)) - return -EPERM; - /* due to the granularity of kmalloc, we waste some memory here */ /* the alloc is done in two steps, to optimize the common situation of a 25x80 console (structsize=216, screenbuf_size=4000) */ |