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path: root/drivers/parisc/led.c
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-rw-r--r--drivers/parisc/led.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/parisc/led.c b/drivers/parisc/led.c
index e90fb72a6962..286902298e33 100644
--- a/drivers/parisc/led.c
+++ b/drivers/parisc/led.c
@@ -37,6 +37,7 @@
37#include <linux/proc_fs.h> 37#include <linux/proc_fs.h>
38#include <linux/ctype.h> 38#include <linux/ctype.h>
39#include <linux/blkdev.h> 39#include <linux/blkdev.h>
40#include <linux/rcupdate.h>
40#include <asm/io.h> 41#include <asm/io.h>
41#include <asm/processor.h> 42#include <asm/processor.h>
42#include <asm/hardware.h> 43#include <asm/hardware.h>
@@ -358,9 +359,10 @@ static __inline__ int led_get_net_activity(void)
358 /* we are running as tasklet, so locking dev_base 359 /* we are running as tasklet, so locking dev_base
359 * for reading should be OK */ 360 * for reading should be OK */
360 read_lock(&dev_base_lock); 361 read_lock(&dev_base_lock);
362 rcu_read_lock();
361 for (dev = dev_base; dev; dev = dev->next) { 363 for (dev = dev_base; dev; dev = dev->next) {
362 struct net_device_stats *stats; 364 struct net_device_stats *stats;
363 struct in_device *in_dev = __in_dev_get(dev); 365 struct in_device *in_dev = __in_dev_get_rcu(dev);
364 if (!in_dev || !in_dev->ifa_list) 366 if (!in_dev || !in_dev->ifa_list)
365 continue; 367 continue;
366 if (LOOPBACK(in_dev->ifa_list->ifa_local)) 368 if (LOOPBACK(in_dev->ifa_list->ifa_local))
@@ -371,6 +373,7 @@ static __inline__ int led_get_net_activity(void)
371 rx_total += stats->rx_packets; 373 rx_total += stats->rx_packets;
372 tx_total += stats->tx_packets; 374 tx_total += stats->tx_packets;
373 } 375 }
376 rcu_read_unlock();
374 read_unlock(&dev_base_lock); 377 read_unlock(&dev_base_lock);
375 378
376 retval = 0; 379 retval = 0;