Re: [f2fs-dev] [PATCH v2] fsck.f2fs: fix memleak in f2fs_create()

[Chao Yu <chao@kernel.org>]

On 2023/6/2 18:24, Maxim Korotkov wrote:
> In error handling cases, the function exited without releasing memory
> 
> Signed-off-by: Maxim Korotkov <korotkov.maxim.s@gmail.com>
> ---
> changelog: fixed code review remarks
>   fsck/dir.c | 10 +++++++---
>   1 file changed, 7 insertions(+), 3 deletions(-)
> 
> diff --git a/fsck/dir.c b/fsck/dir.c
> index 4a3eb6e..29c89de 100644
> --- a/fsck/dir.c
> +++ b/fsck/dir.c
> @@ -704,7 +704,8 @@ int f2fs_create(struct f2fs_sb_info *sbi, struct dentry *de)
>   	ret = convert_inline_dentry(sbi, parent, ni.blk_addr);
>   	if (ret) {
>   		MSG(0, "Convert inline dentry for pino=%x failed.\n", de->pino);
> -		return -1;
> +		ret = -1;
> +		goto free_parent_dir;
>   	}
>   
>   	ret = f2fs_find_entry(sbi, parent, de);
> @@ -713,6 +714,7 @@ int f2fs_create(struct f2fs_sb_info *sbi, struct dentry *de)
>   					de->name, de->pino, ret);
>   		if (de->file_type == F2FS_FT_REG_FILE)
>   			de->ino = 0;
> +		ret = 0;
>   		goto free_parent_dir;
>   	}
>   
> @@ -728,7 +730,8 @@ int f2fs_create(struct f2fs_sb_info *sbi, struct dentry *de)
>   		if (hardlink_ni.blk_addr == NULL_ADDR) {
>   			MSG(1, "No original inode for hard link to_ino=%x\n",
>   				found_hardlink->to_ino);
> -			return -1;
> +			ret = -1;
> +			goto free_child_dir;
>   		}
>   
>   		/* Use previously-recorded inode */
> @@ -750,6 +753,7 @@ int f2fs_create(struct f2fs_sb_info *sbi, struct dentry *de)
>   	if (ret) {
>   		MSG(0, "Skip the existing \"%s\" pino=%x ERR=%d\n",
>   					de->name, de->pino, ret);
> +		ret = 0;
>   		goto free_child_dir;
>   	}
>   
> @@ -804,7 +808,7 @@ free_child_dir:
>   	free(child);
>   free_parent_dir:
>   	free(parent);
> -	return 0;
> +	return ret;	

Oh, unneeded indent in the end of sentence.

Thanks,

>   }
>   
>   int f2fs_mkdir(struct f2fs_sb_info *sbi, struct dentry *de)


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