diff options
| author | Rajan Vaja <rajan.vaja@gmail.com> | 2016-07-21 13:44:44 +0530 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2016-09-03 12:54:53 +0300 |
| commit | 8432ebd66205ef1e088005ae3738600dedc7d9b4 (patch) | |
| tree | 0fe3ad22efd886aaf8392d937c8182d4a508c6c9 | |
| parent | c2da9133455d1e01941f428fb9c497f1497bce7b (diff) | |
| download | linux-8432ebd66205ef1e088005ae3738600dedc7d9b4.tar.gz | |
hostap: Use memdup_user() to reuse code
Fix coccicheck warning which recommends to use memdup_user() instead of reimplementing its code. This patch fixes below coccicheck warnings: drivers/net/wireless/intersil/hostap/hostap_ioctl.c:3044:9-16: WARNING opportunity for memdup_user drivers/net/wireless/intersil/hostap/hostap_ioctl.c:3806:9-16: WARNING opportunity for memdup_user Signed-off-by: Rajan Vaja <rajan.vaja@gmail.com> Reviewed-by: Julian Calaby <julian.calaby@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| -rw-r--r-- | drivers/net/wireless/intersil/hostap/hostap_ioctl.c | 20 |
1 files changed, 6 insertions, 14 deletions
diff --git a/drivers/net/wireless/intersil/hostap/hostap_ioctl.c b/drivers/net/wireless/intersil/hostap/hostap_ioctl.c index 3e5fa7872b64..a5656bc0e6aa 100644 --- a/drivers/net/wireless/intersil/hostap/hostap_ioctl.c +++ b/drivers/net/wireless/intersil/hostap/hostap_ioctl.c @@ -3041,13 +3041,9 @@ static int prism2_ioctl_priv_download(local_info_t *local, struct iw_point *p) p->length > 1024 || !p->pointer) return -EINVAL; - param = kmalloc(p->length, GFP_KERNEL); - if (param == NULL) - return -ENOMEM; - - if (copy_from_user(param, p->pointer, p->length)) { - ret = -EFAULT; - goto out; + param = memdup_user(p->pointer, p->length); + if (IS_ERR(param)) { + return PTR_ERR(param); } if (p->length < sizeof(struct prism2_download_param) + @@ -3803,13 +3799,9 @@ static int prism2_ioctl_priv_hostapd(local_info_t *local, struct iw_point *p) p->length > PRISM2_HOSTAPD_MAX_BUF_SIZE || !p->pointer) return -EINVAL; - param = kmalloc(p->length, GFP_KERNEL); - if (param == NULL) - return -ENOMEM; - - if (copy_from_user(param, p->pointer, p->length)) { - ret = -EFAULT; - goto out; + param = memdup_user(p->pointer, p->length); + if (IS_ERR(param)) { + return PTR_ERR(param); } switch (param->cmd) { |