Push the BKL down into a few internal bits of code in this driver. Signed-off-by: Alan Cox <[EMAIL PROTECTED]>
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.25-rc2-mm1/drivers/char/esp.c linux-2.6.25-rc2-mm1/drivers/char/esp.c --- linux.vanilla-2.6.25-rc2-mm1/drivers/char/esp.c 2008-02-19 11:03:00.000000000 +0000 +++ linux-2.6.25-rc2-mm1/drivers/char/esp.c 2008-02-20 11:45:43.000000000 +0000 @@ -1355,6 +1355,7 @@ { struct serial_struct tmp; + lock_kernel(); memset(&tmp, 0, sizeof(tmp)); tmp.type = PORT_16550A; tmp.line = info->line; @@ -1367,6 +1368,7 @@ tmp.closing_wait = info->closing_wait; tmp.custom_divisor = info->custom_divisor; tmp.hub6 = 0; + unlock_kernel(); if (copy_to_user(retinfo,&tmp,sizeof(*retinfo))) return -EFAULT; return 0; @@ -1381,6 +1383,7 @@ return -EFAULT; memset(&tmp, 0, sizeof(tmp)); + lock_kernel(); tmp.rx_timeout = info->config.rx_timeout; tmp.rx_trigger = info->config.rx_trigger; tmp.tx_trigger = info->config.tx_trigger; @@ -1388,7 +1391,8 @@ tmp.flow_on = info->config.flow_on; tmp.pio_threshold = info->config.pio_threshold; tmp.dma_channel = (info->stat_flags & ESP_STAT_NEVER_DMA ? 0 : dma); - + unlock_kernel(); + return copy_to_user(retinfo, &tmp, sizeof(*retinfo)) ? -EFAULT : 0; } @@ -1766,6 +1770,7 @@ struct serial_icounter_struct __user *p_cuser; /* user space */ void __user *argp = (void __user *)arg; unsigned long flags; + int ret; if (serial_paranoia_check(info, tty->name, "rs_ioctl")) return -ENODEV; @@ -1783,7 +1788,10 @@ case TIOCGSERIAL: return get_serial_info(info, argp); case TIOCSSERIAL: - return set_serial_info(info, argp); + lock_kernel(); + ret = set_serial_info(info, argp); + unlock_kernel(); + return ret; case TIOCSERCONFIG: /* do not reconfigure after initial configuration */ return 0; @@ -1855,11 +1863,13 @@ return -EFAULT; return 0; - case TIOCGHAYESESP: - return get_esp_config(info, argp); - case TIOCSHAYESESP: - return set_esp_config(info, argp); - + case TIOCGHAYESESP: + return get_esp_config(info, argp); + case TIOCSHAYESESP: + lock_kernel(); + ret = set_esp_config(info, argp); + unlock_kernel(); + return ret; default: return -ENOIOCTLCMD; } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/