[PATCH] fsl/fman: Free init resources on KeyGen failure in fman_init()

fman_muram_alloc() allocates initialization resources before
initializing the KeyGen block. If keygen_init() fails, the
function returns -EINVAL directly and leaves those resources
allocated. Free the initialization resources before returning
from the KeyGen failure path.

While at it, drop the unused error check around enable(), which
always returns 0.

Fixes: 7472f4f281d0 ("fsl/fman: enable FMan Keygen")
Cc: stable@kernel.org
Signed-off-by: Haoxiang Li <redacted>
---
 drivers/net/ethernet/freescale/fman/fman.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/freescale/fman/fman.c b/drivers/net/ethernet/freescale/fman/fman.c
index 013273a2de32..3a2a57207e55 100644
--- a/drivers/net/ethernet/freescale/fman/fman.c
+++ b/drivers/net/ethernet/freescale/fman/fman.c

@@ -1995,12 +1995,12 @@ static int fman_init(struct fman *fman)
 
 	/* Init KeyGen */
 	fman->keygen = keygen_init(fman->kg_regs);
-	if (!fman->keygen)
+	if (!fman->keygen) {
+		free_init_resources(fman);
 		return -EINVAL;
+	}
 
-	err = enable(fman, cfg);
-	if (err != 0)
-		return err;
+	enable(fman, cfg);
 
 	enable_time_stamp(fman);
 

-- 
2.25.1