if count > 0 and dev->rlen == dev->rpos and dev->proto == 0 then we read and write dev->rbuf[-1];
Signed-off-by: Roel Kluin <[email protected]> --- Unless I am mistaken, so please review diff --git a/drivers/char/pcmcia/cm4000_cs.c b/drivers/char/pcmcia/cm4000_cs.c index 881934c..c250a31 100644 --- a/drivers/char/pcmcia/cm4000_cs.c +++ b/drivers/char/pcmcia/cm4000_cs.c @@ -1017,7 +1017,7 @@ static ssize_t cmm_read(struct file *filp, __user char *buf, size_t count, } } - if (dev->proto == 0 && count > dev->rlen - dev->rpos) { + if (dev->proto == 0 && count > dev->rlen - dev->rpos && i) { DEBUGP(4, dev, "T=0 and count > buffer\n"); dev->rbuf[i] = dev->rbuf[i - 1]; dev->rbuf[i - 1] = dev->procbyte; _______________________________________________ Linux PCMCIA reimplementation list http://lists.infradead.org/mailman/listinfo/linux-pcmcia
