tty: n_gsm: Fix incorrect debug display

In the trace we print the wrong values for N(R) on an I frame.
Correct the mask.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
index 3e210a4..1e8e8ce 100644 (file)
--- a/drivers/tty/n_gsm.c
+++ b/drivers/tty/n_gsm.c
@@ -488,7 +488,7 @@ static void gsm_print_packet(const char *hdr, int addr, int cr,
        default:
                if (!(control & 0x01)) {
                        pr_cont("I N(S)%d N(R)%d",
-                               (control & 0x0E) >> 1, (control & 0xE) >> 5);
+                               (control & 0x0E) >> 1, (control & 0xE0) >> 5);
                } else switch (control & 0x0F) {
                        case RR:
                                pr_cont("RR(%d)", (control & 0xE0) >> 5);