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Upgrade to 4.4.50-rt62
[kvmfornfv.git]
/
kernel
/
drivers
/
tty
/
n_gsm.c
diff --git
a/kernel/drivers/tty/n_gsm.c
b/kernel/drivers/tty/n_gsm.c
index
c3fe026
..
9aff371
100644
(file)
--- a/
kernel/drivers/tty/n_gsm.c
+++ b/
kernel/drivers/tty/n_gsm.c
@@
-2045,7
+2045,9
@@
static void gsm_cleanup_mux(struct gsm_mux *gsm)
}
}
spin_unlock(&gsm_mux_lock);
- WARN_ON(i == MAX_MUX);
+ /* open failed before registering => nothing to do */
+ if (i == MAX_MUX)
+ return;
/* In theory disconnecting DLCI 0 is sufficient but for some
modems this is apparently not the case. */