[PATCH 1/7] staging: wlags49_h2: Handle sysfs_create_group return correctly

From: David Kilroy
Date: Sun Oct 09 2011 - 07:12:00 EST


The function returns 0 on success and non-zero on error. So
correctly record the status so it is freed appropriately.

Signed-off-by: David Kilroy <kilroyd@xxxxxxxxxxxxxx>
---
drivers/staging/wlags49_h2/wl_internal.h | 2 +-
drivers/staging/wlags49_h2/wl_sysfs.c | 18 ++++++++++--------
2 files changed, 11 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/wlags49_h2/wl_internal.h b/drivers/staging/wlags49_h2/wl_internal.h
index 6351bb8..9ed2857 100644
--- a/drivers/staging/wlags49_h2/wl_internal.h
+++ b/drivers/staging/wlags49_h2/wl_internal.h
@@ -883,7 +883,7 @@ struct wl_private
int is_registered;
int is_handling_int;
int firmware_present;
- char sysfsCreated;
+ bool sysfsCreated;
CFG_DRV_INFO_STRCT driverInfo;
CFG_IDENTITY_STRCT driverIdentity;
CFG_FW_IDENTITY_STRCT StationIdentity;
diff --git a/drivers/staging/wlags49_h2/wl_sysfs.c b/drivers/staging/wlags49_h2/wl_sysfs.c
index 9b833b3..1508f04 100644
--- a/drivers/staging/wlags49_h2/wl_sysfs.c
+++ b/drivers/staging/wlags49_h2/wl_sysfs.c
@@ -120,17 +120,19 @@ static struct attribute_group wlags_group = {

void register_wlags_sysfs(struct net_device *net)
{
- struct device *dev = &(net->dev);
- struct wl_private *lp = wl_priv(net);
-
- lp->sysfsCreated = sysfs_create_group(&dev->kobj, &wlags_group);
+ struct device *dev = &(net->dev);
+ struct wl_private *lp = wl_priv(net);
+ int err;
+ err = sysfs_create_group(&dev->kobj, &wlags_group);
+ if (!err)
+ lp->sysfsCreated = true;
}

void unregister_wlags_sysfs(struct net_device *net)
{
- struct device *dev = &(net->dev);
- struct wl_private *lp = wl_priv(net);
+ struct device *dev = &(net->dev);
+ struct wl_private *lp = wl_priv(net);

- if (lp->sysfsCreated)
- sysfs_remove_group(&dev->kobj, &wlags_group);
+ if (lp->sysfsCreated)
+ sysfs_remove_group(&dev->kobj, &wlags_group);
}
--
1.7.4.1

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