"protos" is an array of unsigned longs and "i" is the number of bits in an unsigned long so we need to use 1UL as well to prevent the shift from wrapping around. Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> diff --git a/drivers/isdn/i4l/isdn_ppp.c b/drivers/isdn/i4l/isdn_ppp.c index a1e7601..69b5b58 100644 --- a/drivers/isdn/i4l/isdn_ppp.c +++ b/drivers/isdn/i4l/isdn_ppp.c @@ -595,7 +595,7 @@ isdn_ppp_ioctl(int min, struct file *file, unsigned int cmd, unsigned long arg) j = ipc->num / (sizeof(long) * 8); i = ipc->num % (sizeof(long) * 8); if (j < 8) - protos[j] |= (0x1 << i); + protos[j] |= (1UL << i); ipc = ipc->next; } if ((r = set_arg(argp, protos, 8 * sizeof(long)))) -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html