[PATCH] erofs-utils: fix erofs_sys_lsetxattr() returning positive errno

[Lucas Karpinski]

On 2026-04-07 5:21 a.m., Zhan Xusheng wrote:
> erofs_sys_lsetxattr() returns bare `errno` (a positive value) on
> failure, unlike its sibling erofs_sys_lgetxattr() which correctly
> returns `-errno`.
> 
> Fix by returning -errno, consistent with erofs_sys_lgetxattr().
> 
> Fixes: e0d85fc5a282 ("erofs-utils: lib: introduce erofs_sys_lsetxattr()")
> Signed-off-by: Zhan Xusheng <zhanxusheng at xiaomi.com>
> ---
>  lib/xattr.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/lib/xattr.c b/lib/xattr.c
> index 565070a..af1b9ca 100644
> --- a/lib/xattr.c
> +++ b/lib/xattr.c
> @@ -123,7 +123,7 @@ ssize_t erofs_sys_lsetxattr(const char *path, const char *name,
>  	errno = ENODATA;
>  #endif
>  	if (ret < 0)
> -		return errno;
> +		return -errno;
>  	return ret;
>  }
>  
For consistency with erofs_sys_lgetxattr():
-		return errno;
+		ret = -errno;

Regards,
Lucas