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-rw-r--r--drivers/net/wireless/ath9k/debug.c24
-rw-r--r--drivers/net/wireless/ath9k/debug.h12
-rw-r--r--drivers/net/wireless/ath9k/main.c13
3 files changed, 41 insertions, 8 deletions
diff --git a/drivers/net/wireless/ath9k/debug.c b/drivers/net/wireless/ath9k/debug.c
index 8d91422106d..0f7e249d2d2 100644
--- a/drivers/net/wireless/ath9k/debug.c
+++ b/drivers/net/wireless/ath9k/debug.c
@@ -19,6 +19,8 @@
static unsigned int ath9k_debug = DBG_DEFAULT;
module_param_named(debug, ath9k_debug, uint, 0);
+static struct dentry *ath9k_debugfs_root;
+
void DPRINTF(struct ath_softc *sc, int dbg_mask, const char *fmt, ...)
{
if (!sc)
@@ -491,12 +493,8 @@ int ath9k_init_debug(struct ath_softc *sc)
{
sc->debug.debug_mask = ath9k_debug;
- sc->debug.debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL);
- if (!sc->debug.debugfs_root)
- goto err;
-
sc->debug.debugfs_phy = debugfs_create_dir(wiphy_name(sc->hw->wiphy),
- sc->debug.debugfs_root);
+ ath9k_debugfs_root);
if (!sc->debug.debugfs_phy)
goto err;
@@ -538,5 +536,19 @@ void ath9k_exit_debug(struct ath_softc *sc)
debugfs_remove(sc->debug.debugfs_interrupt);
debugfs_remove(sc->debug.debugfs_dma);
debugfs_remove(sc->debug.debugfs_phy);
- debugfs_remove(sc->debug.debugfs_root);
+}
+
+int ath9k_debug_create_root(void)
+{
+ ath9k_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL);
+ if (!ath9k_debugfs_root)
+ return -ENOENT;
+
+ return 0;
+}
+
+void ath9k_debug_remove_root(void)
+{
+ debugfs_remove(ath9k_debugfs_root);
+ ath9k_debugfs_root = NULL;
}
diff --git a/drivers/net/wireless/ath9k/debug.h b/drivers/net/wireless/ath9k/debug.h
index 2a33d74fdbe..065268b8568 100644
--- a/drivers/net/wireless/ath9k/debug.h
+++ b/drivers/net/wireless/ath9k/debug.h
@@ -102,7 +102,6 @@ struct ath_stats {
struct ath9k_debug {
int debug_mask;
- struct dentry *debugfs_root;
struct dentry *debugfs_phy;
struct dentry *debugfs_dma;
struct dentry *debugfs_interrupt;
@@ -114,6 +113,8 @@ struct ath9k_debug {
void DPRINTF(struct ath_softc *sc, int dbg_mask, const char *fmt, ...);
int ath9k_init_debug(struct ath_softc *sc);
void ath9k_exit_debug(struct ath_softc *sc);
+int ath9k_debug_create_root(void);
+void ath9k_debug_remove_root(void);
void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status);
void ath_debug_stat_rc(struct ath_softc *sc, struct sk_buff *skb);
void ath_debug_stat_retries(struct ath_softc *sc, int rix,
@@ -135,6 +136,15 @@ static inline void ath9k_exit_debug(struct ath_softc *sc)
{
}
+static inline int ath9k_debug_create_root(void)
+{
+ return 0;
+}
+
+static inline void ath9k_debug_remove_root(void)
+{
+}
+
static inline void ath_debug_stat_interrupt(struct ath_softc *sc,
enum ath9k_int status)
{
diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c
index f473fee72a2..bb30ccca184 100644
--- a/drivers/net/wireless/ath9k/main.c
+++ b/drivers/net/wireless/ath9k/main.c
@@ -2858,12 +2858,20 @@ static int __init ath9k_init(void)
goto err_out;
}
+ error = ath9k_debug_create_root();
+ if (error) {
+ printk(KERN_ERR
+ "ath9k: Unable to create debugfs root: %d\n",
+ error);
+ goto err_rate_unregister;
+ }
+
error = ath_pci_init();
if (error < 0) {
printk(KERN_ERR
"ath9k: No PCI devices found, driver not installed.\n");
error = -ENODEV;
- goto err_rate_unregister;
+ goto err_remove_root;
}
error = ath_ahb_init();
@@ -2877,6 +2885,8 @@ static int __init ath9k_init(void)
err_pci_exit:
ath_pci_exit();
+ err_remove_root:
+ ath9k_debug_remove_root();
err_rate_unregister:
ath_rate_control_unregister();
err_out:
@@ -2888,6 +2898,7 @@ static void __exit ath9k_exit(void)
{
ath_ahb_exit();
ath_pci_exit();
+ ath9k_debug_remove_root();
ath_rate_control_unregister();
printk(KERN_INFO "%s: Driver unloaded\n", dev_info);
}