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>

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) */