This was detected by Coverity.
Add the missing assignment in the else branch of the if
Reported-by: Kees Bakker <kees@ijzerbout.nl>
Fixes: fce79512a96a ("staging: gpib: Add LPVO DIY USB GPIB driver")
Signed-off-by: Dave Penkler <dpenkler@gmail.com>
Link: https://lore.kernel.org/r/20241204145713.11889-5-dpenkler@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 
                } else {
                        /* we are in the closing <DLE><ETX> sequence */
-
+                       c = nc;
                        if (c == ETX) {
                                c = one_char(board, &b);
                                if (c == ACK) {