On Tue, May 21, 2019 at 09:46:55PM -0300, Fabio Lima wrote:
> This patch resolves the following warning from checkpatch.pl
> WARNING: Missing a blank line after declarations
>
> Signed-off-by: Fabio Lima <fabiolima39@xxxxxxxxx>
> ---
> drivers/staging/rtl8723bs/core/rtw_debug.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/staging/rtl8723bs/core/rtw_debug.c b/drivers/staging/rtl8723bs/core/rtw_debug.c
> index 9f8446ccf..853362381 100644
> --- a/drivers/staging/rtl8723bs/core/rtw_debug.c
> +++ b/drivers/staging/rtl8723bs/core/rtw_debug.c
> @@ -382,6 +382,7 @@ ssize_t proc_set_roam_tgt_addr(struct file *file, const char __user *buffer, siz
> if (buffer && !copy_from_user(tmp, buffer, sizeof(tmp))) {
>
> int num = sscanf(tmp, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx", addr, addr+1, addr+2, addr+3, addr+4, addr+5);
> +
> if (num == 6)
> memcpy(adapter->mlmepriv.roam_tgt_addr, addr, ETH_ALEN);
>
I'm sorry but this function is really such nonsense. Can you send a
patch to re-write it instead?
drivers/staging/rtl8723bs/core/rtw_debug.c
371 ssize_t proc_set_roam_tgt_addr(struct file *file, const char __user *buffer, size_t count, loff_t *pos, void *data)
372 {
373 struct net_device *dev = data;
374 struct adapter *adapter = (struct adapter *)rtw_netdev_priv(dev);
375
376 char tmp[32];
377 u8 addr[ETH_ALEN];
378
379 if (count < 1)
This check is silly. I guess the safest thing is to change it to:
if (count < sizeof(tmp))
380 return -EFAULT;
It should be return -EINVAL;
381
382 if (buffer && !copy_from_user(tmp, buffer, sizeof(tmp))) {
Remove the check for if the user passes a NULL buffer, because that's
already handled in copy_from_user(). Return -EFAULT if copy_from_user()
fails.
if (copy_from_user(tmp, buffer, sizeof(tmp)))
return -EFAULT;
383
Extra blank line.
384 int num = sscanf(tmp, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx", addr, addr+1, addr+2, addr+3, addr+4, addr+5);
You will need to move the num declaration to the start of the function.
385 if (num == 6)
386 memcpy(adapter->mlmepriv.roam_tgt_addr, addr, ETH_ALEN);
If num != 6 then return -EINVAL;
387
388 DBG_871X("set roam_tgt_addr to "MAC_FMT"\n", MAC_ARG(adapter->mlmepriv.roam_tgt_addr));
389 }
390
391 return count;
392 }
regards,
dan carpenter
_______________________________________________
devel mailing list
devel@xxxxxxxxxxxxxxxxxxxxxx
http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
