This can happen if CONFIG_BCM43XX_MAC80211_DEBUG is enabled, but
CONFIG_DEBUG_FS is not.
Signed-off-by: Pavel Roskin <proski@xxxxxxx>
---
.../wireless/bcm43xx-mac80211/bcm43xx_debugfs.c | 8 ++++++--
1 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/bcm43xx-mac80211/bcm43xx_debugfs.c b/drivers/net/wireless/bcm43xx-mac80211/bcm43xx_debugfs.c
index 9ca4625..aded2b3 100644
--- a/drivers/net/wireless/bcm43xx-mac80211/bcm43xx_debugfs.c
+++ b/drivers/net/wireless/bcm43xx-mac80211/bcm43xx_debugfs.c
@@ -408,7 +408,7 @@ static struct file_operations restart_fops = {
int bcm43xx_debug(struct bcm43xx_wldev *dev, enum bcm43xx_dyndbg feature)
{
- return !!(dev->dfsentry->dyn_debug[feature]);
+ return !!(dev->dfsentry && dev->dfsentry->dyn_debug[feature]);
}
static void bcm43xx_remove_dynamic_debug(struct bcm43xx_wldev *dev)
@@ -472,7 +472,9 @@ void bcm43xx_debugfs_add_device(struct bcm43xx_wldev *dev)
snprintf(devdir, sizeof(devdir), "%s", wiphy_name(dev->wl->hw->wiphy));
e->subdir = debugfs_create_dir(devdir, fs.root);
if (!e->subdir || IS_ERR(e->subdir)) {
- e->subdir = NULL;
+ bcmerr(dev->wl, "debugfs: cannot create %s directory\n",
+ devdir);
+ dev->dfsentry = NULL;
kfree(log->log);
kfree(e);
return;
@@ -525,6 +527,8 @@ void bcm43xx_debugfs_log_txstat(struct bcm43xx_wldev *dev,
struct bcm43xx_txstatus *cur;
int i;
+ if (!e)
+ return;
log = &e->txstatlog;
assert(irqs_disabled());
spin_lock(&log->lock);
-
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