libsqfs: Initialize the return value in sqfs_compressor_create

Initialize the output compressor pointer to NULL, so if the function
fails, the value is propperly initialized to a NULL pointer instead
of relying on the function user to initialize it.

Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>

1 files changed, 2 insertions, 0 deletions

diff --git a/lib/sqfs/comp/compressor.c b/lib/sqfs/comp/compressor.c
index f079651..4c4d73c 100644
--- a/lib/sqfs/comp/compressor.c
+++ b/lib/sqfs/comp/compressor.c
@@ -92,6 +92,8 @@ int sqfs_compressor_create(const sqfs_compressor_config_t *cfg,
 	sqfs_u8 padd0[sizeof(cfg->opt)];
 	int ret;
 
+	*out = NULL;
+
 	/* check compressor ID */
 	if (cfg == NULL)
 		return SQFS_ERROR_ARG_INVALID;