On Friday, 2017-09-08 19:59:17 +0200, walter harms wrote:
> free() can handle NULL so remove the check

Did you use a cocci script [1] to generate this?
If so, can you add it to the commit message?

Regardless, I double-checked it and it looks good to me:
Reviewed-by: Eric Engestrom <[email protected]>

[1] perhaps something like this?
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/scripts/coccinelle/free/ifnullfree.cocci

> 
> Signed-off-by: Walter Harms <[email protected]>
> ---
>  src/authutil.c | 24 ++++++++++++------------
>  src/misc.c     |  3 +--
>  src/process.c  | 41 +++++++++++++++--------------------------
>  src/shutdown.c | 44 +++++++++++---------------------------------
>  4 files changed, 39 insertions(+), 73 deletions(-)
> 
> diff --git a/src/authutil.c b/src/authutil.c
> index ca0504a..d7bcef9 100644
> --- a/src/authutil.c
> +++ b/src/authutil.c
> @@ -111,8 +111,8 @@ IceAuthFileName (void)
> 
>      if (size > bsize)
>      {
> -     if (buf)
> -         free (buf);
> +
> +     free (buf);
>       buf = malloc (size);
>       if (!buf) {
>           bsize = 0;
> @@ -266,11 +266,11 @@ IceReadAuthFileEntry (
> 
>   bad:
> 
> -    if (local.protocol_name) free (local.protocol_name);
> -    if (local.protocol_data) free (local.protocol_data);
> -    if (local.network_id) free (local.network_id);
> -    if (local.auth_name) free (local.auth_name);
> -    if (local.auth_data) free (local.auth_data);
> +    free (local.protocol_name);
> +    free (local.protocol_data);
> +    free (local.network_id);
> +    free (local.auth_name);
> +    free (local.auth_data);
> 
>      return (NULL);
>  }
> @@ -284,11 +284,11 @@ IceFreeAuthFileEntry (
>  {
>      if (auth)
>      {
> -     if (auth->protocol_name) free (auth->protocol_name);
> -     if (auth->protocol_data) free (auth->protocol_data);
> -     if (auth->network_id) free (auth->network_id);
> -     if (auth->auth_name) free (auth->auth_name);
> -     if (auth->auth_data) free (auth->auth_data);
> +     free (auth->protocol_name);
> +     free (auth->protocol_data);
> +     free (auth->network_id);
> +     free (auth->auth_name);
> +     free (auth->auth_data);
>       free (auth);
>      }
>  }
> diff --git a/src/misc.c b/src/misc.c
> index d2e9150..87d6335 100644
> --- a/src/misc.c
> +++ b/src/misc.c
> @@ -54,8 +54,7 @@ IceAllocScratch (
>  {
>      if (!iceConn->scratch || size > iceConn->scratch_size)
>      {
> -     if (iceConn->scratch)
> -         free (iceConn->scratch);
> +     free (iceConn->scratch);
> 
>       iceConn->scratch = malloc (size);
>       iceConn->scratch_size = size;
> diff --git a/src/process.c b/src/process.c
> index 4100a83..a9a8d08 100644
> --- a/src/process.c
> +++ b/src/process.c
> @@ -1026,8 +1026,7 @@ ProcessConnectionSetup (
>               iceConn->connection_status = IceConnectRejected;
>           }
> 
> -         if (hostname)
> -             free (hostname);
> +         free (hostname);
>       }
> 
>       if (iceConn->connection_status == IceConnectRejected)
> @@ -1080,8 +1079,7 @@ ProcessConnectionSetup (
>       if (authData && authDataLen > 0)
>           free (authData);
> 
> -     if (errorString)
> -         free (errorString);
> +     free (errorString);
>      }
> 
>      if (accept_setup_now)
> @@ -1369,8 +1367,7 @@ ProcessAuthReply (
>                   status = IcePaAuthAccepted;
>               }
> 
> -             if (hostname)
> -                 free (hostname);
> +             free (hostname);
>           }
> 
>           if (status != IcePaAuthAccepted)
> @@ -1444,8 +1441,7 @@ ProcessAuthReply (
>                   status = IcePaAuthAccepted;
>               }
> 
> -             if (hostname)
> -                 free (hostname);
> +             free (hostname);
>           }
> 
>           if (status == IcePaAuthRejected)
> @@ -1559,18 +1555,15 @@ ProcessAuthReply (
>               _IceErrorSetupFailed (iceConn, ICE_ProtocolSetup,
>                   failureReason);
> 
> -             if (failureReason)
> -                 free (failureReason);
> +             free (failureReason);
>           }
>       }
> 
> 
>       if (free_setup_info)
>       {
> -         if (iceConn->protosetup_to_me->his_vendor)
> -             free (iceConn->protosetup_to_me->his_vendor);
> -         if (iceConn->protosetup_to_me->his_release)
> -             free (iceConn->protosetup_to_me->his_release);
> +         free (iceConn->protosetup_to_me->his_vendor);
> +         free (iceConn->protosetup_to_me->his_release);
>           free (iceConn->protosetup_to_me);
>           iceConn->protosetup_to_me = NULL;
>       }
> @@ -1587,8 +1580,8 @@ ProcessAuthReply (
>      if (authData && authDataLen > 0)
>       free (authData);
> 
> -    if (errorString)
> -     free (errorString);
> +
> +    free (errorString);
> 
>      IceDisposeCompleteMessage (iceConn, replyData);
>      return (0);
> @@ -2071,8 +2064,7 @@ ProcessProtocolSetup (
>                   ICE_ProtocolSetup, "None of the authentication protocols 
> specified are supported and host-based authentication failed");
>           }
> 
> -         if (hostname)
> -             free (hostname);
> +         free (hostname);
>       }
>      }
>      else
> @@ -2118,8 +2110,8 @@ ProcessProtocolSetup (
>       if (authData && authDataLen > 0)
>           free (authData);
> 
> -     if (errorString)
> -         free (errorString);
> +
> +     free (errorString);
>      }
> 
>      if (accept_setup_now)
> @@ -2202,16 +2194,13 @@ ProcessProtocolSetup (
> 
>           _IceErrorSetupFailed (iceConn, ICE_ProtocolSetup, failureReason);
> 
> -         if (failureReason)
> -             free (failureReason);
> +         free (failureReason);
>       }
>      }
> 
> -    if (vendor)
> -     free (vendor);
> 
> -    if (release)
> -     free (release);
> +    free (vendor);
> +    free (release);
> 
>      if (hisAuthCount > 0)
>      {
> diff --git a/src/shutdown.c b/src/shutdown.c
> index 5def0b4..90e9ded 100644
> --- a/src/shutdown.c
> +++ b/src/shutdown.c
> @@ -282,39 +282,17 @@ _IceFreeConnection (
>      if (iceConn->trans_conn)
>       _IceTransClose (iceConn->trans_conn);
> 
> -    if (iceConn->connection_string)
> -     free (iceConn->connection_string);
> -
> -    if (iceConn->vendor)
> -     free (iceConn->vendor);
> -
> -    if (iceConn->release)
> -     free (iceConn->release);
> -
> -    if (iceConn->inbuf)
> -     free (iceConn->inbuf);
> -
> -    if (iceConn->outbuf)
> -     free (iceConn->outbuf);
> -
> -    if (iceConn->scratch)
> -     free (iceConn->scratch);
> -
> -    if (iceConn->process_msg_info)
> -     free (iceConn->process_msg_info);
> -
> -    if (iceConn->connect_to_you)
> -     free (iceConn->connect_to_you);
> -
> -    if (iceConn->protosetup_to_you)
> -     free (iceConn->protosetup_to_you);
> -
> -    if (iceConn->connect_to_me)
> -     free (iceConn->connect_to_me);
> -
> -    if (iceConn->protosetup_to_me)
> -     free (iceConn->protosetup_to_me);
> -
> +    free (iceConn->connection_string);
> +    free (iceConn->vendor);
> +    free (iceConn->release);
> +    free (iceConn->inbuf);
> +    free (iceConn->outbuf);
> +    free (iceConn->scratch);
> +    free (iceConn->process_msg_info);
> +    free (iceConn->connect_to_you);
> +    free (iceConn->protosetup_to_you);
> +    free (iceConn->connect_to_me);
> +    free (iceConn->protosetup_to_me);
>      free (iceConn);
>  }
> 
> -- 
> 2.1.4
> 
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