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n_gsm: Fix length handling 

If the mux is configured with a large mru/mtu the existing code gets the
byte ordering wrong for the header.

Signed-off-by: Ken Mills <ken.k.mills@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
hifive-unleashed-5.1
Ken Mills 2010-11-04 15:16:42 +00:00 committed by Greg Kroah-Hartman
parent 820e62ef3d
commit 40e3465db2
1 changed files with 2 additions and 2 deletions
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4
drivers/tty/n_gsm.c
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@ -716,8 +716,8 @@ static void __gsm_data_queue(struct gsm_dlci *dlci, struct gsm_msg *msg)
if (msg->len < 128)
*--dp = (msg->len << 1) | EA;
else {
*--dp = (msg->len >> 6) | EA;
*--dp = (msg->len & 127) << 1;
*--dp = ((msg->len & 127) << 1) | EA;
*--dp = (msg->len >> 6) & 0xfe;
}
}