iommu/amd: Finish TLB flush in amd_iommu_unmap()

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / tty / n_gsm.c

diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
index 642239015b46bbe9e18844f186a31296a343d5f9..3ee7217e25b2d8d2b52815018d9cb40548e99dba 100644 (file)
--- a/drivers/tty/n_gsm.c
+++ b/drivers/tty/n_gsm.c
@@ -1089,6 +1089,7 @@ static void gsm_control_modem(struct gsm_mux *gsm, u8 *data, int clen)
 {
        unsigned int addr = 0;
        unsigned int modem = 0;
+       unsigned int brk = 0;
        struct gsm_dlci *dlci;
        int len = clen;
        u8 *dp = data;
@@ -1115,6 +1116,16 @@ static void gsm_control_modem(struct gsm_mux *gsm, u8 *data, int clen)
                if (len == 0)
                        return;
        }
+       len--;
+       if (len > 0) {
+               while (gsm_read_ea(&brk, *dp++) == 0) {
+                       len--;
+                       if (len == 0)
+                               return;
+               }
+               modem <<= 7;
+               modem |= (brk & 0x7f);
+       }
        tty = tty_port_tty_get(&dlci->port);
        gsm_process_modem(tty, dlci, modem, clen);
        if (tty) {