Corrected data type for variable data adding __user to make it cleaner and silence the Sparse warning. This is version 2 of patch, version 1 can be found at https://lore.kernel.org/linux-staging/20210420090142.GA4086@ashish-NUC8i5BEH/ Signed-off-by: Ashish Kalra <eashishkalra@xxxxxxxxx> --- Changes from v1: removed type casting of (void __user *) for req->data and corrected type for data to include __user. drivers/staging/wlan-ng/p80211ioctl.h | 2 +- drivers/staging/wlan-ng/p80211netdev.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/staging/wlan-ng/p80211ioctl.h b/drivers/staging/wlan-ng/p80211ioctl.h index ed65ac57a..77e8d2913 100644 --- a/drivers/staging/wlan-ng/p80211ioctl.h +++ b/drivers/staging/wlan-ng/p80211ioctl.h @@ -81,7 +81,7 @@ struct p80211ioctl_req { char name[WLAN_DEVNAMELEN_MAX]; - caddr_t data; + char __user *data; u32 magic; u16 len; u32 result; diff --git a/drivers/staging/wlan-ng/p80211netdev.c b/drivers/staging/wlan-ng/p80211netdev.c index 70570e8a5..dfb2d2832 100644 --- a/drivers/staging/wlan-ng/p80211netdev.c +++ b/drivers/staging/wlan-ng/p80211netdev.c @@ -569,7 +569,7 @@ static int p80211knetdev_do_ioctl(struct net_device *dev, goto bail; } - msgbuf = memdup_user((void __user *)req->data, req->len); + msgbuf = memdup_user(req->data, req->len); if (IS_ERR(msgbuf)) { result = PTR_ERR(msgbuf); goto bail; @@ -579,7 +579,7 @@ static int p80211knetdev_do_ioctl(struct net_device *dev, if (result == 0) { if (copy_to_user - ((void __user *)req->data, msgbuf, req->len)) { + (req->data, msgbuf, req->len)) { result = -EFAULT; } } -- 2.25.1
