[Cluster-devel] [PATCH 1/5] fsck.gfs2: Fix memory leaks in pass1_process_rgrp

[Bob Peterson <rpeterso@redhat.com>]

ACK to all five in the series.

----- Original Message -----
> Spotted by coverity: "Variable ibuf going out of scope leaks the storage
> it points to"
> 
> Signed-off-by: Andrew Price <anprice@redhat.com>
> ---
>  gfs2/fsck/pass1.c | 14 +++++++++-----
>  1 file changed, 9 insertions(+), 5 deletions(-)
> 
> diff --git a/gfs2/fsck/pass1.c b/gfs2/fsck/pass1.c
> index b516a21..69c88f4 100644
> --- a/gfs2/fsck/pass1.c
> +++ b/gfs2/fsck/pass1.c
> @@ -1625,7 +1625,10 @@ static int pass1_process_rgrp(struct gfs2_sbd *sdp,
> struct rgrp_tree *rgd)
>  {
>  	unsigned k, n, i;
>  	uint64_t *ibuf = malloc(sdp->bsize * GFS2_NBBY * sizeof(uint64_t));
> -	int ret;
> +	int ret = 0;
> +
> +	if (ibuf == NULL)
> +		return FSCK_ERROR;
>  
>  	for (k = 0; k < rgd->ri.ri_length; k++) {
>  		n = lgfs2_bm_scan(rgd, k, ibuf, GFS2_BLKST_DINODE);
> @@ -1633,11 +1636,11 @@ static int pass1_process_rgrp(struct gfs2_sbd *sdp,
> struct rgrp_tree *rgd)
>  		if (n) {
>  			ret = pass1_process_bitmap(sdp, rgd, ibuf, n);
>  			if (ret)
> -				return ret;
> +				goto out;
>  		}
>  
>  		if (fsck_abort)
> -			return 0;
> +			goto out;
>  		/*
>  		  For GFS1, we have to count the "free meta" blocks in the
>  		  resource group and mark them specially so we can count them
> @@ -1650,12 +1653,13 @@ static int pass1_process_rgrp(struct gfs2_sbd *sdp,
> struct rgrp_tree *rgd)
>  		for (i = 0; i < n; i++) {
>  			gfs2_blockmap_set(bl, ibuf[i], GFS2_BLKST_UNLINKED);
>  			if (fsck_abort)
> -				return 0;
> +				goto out;
>  		}
>  	}
>  
> +out:
>  	free(ibuf);
> -	return 0;
> +	return ret;
>  }
>  
>  /**
> --
> 1.9.3
> 
>