diff --git a/drivers/mtd/devices/st_spi_fsm.c b/drivers/mtd/devices/st_spi_fsm.c
index 55d4a77f3b7f5732b1db91e2b5910d9488228ee1..533096c88ae19f40276e025e6f7ba07dbfd8068e 100644
--- a/drivers/mtd/devices/st_spi_fsm.c
+++ b/drivers/mtd/devices/st_spi_fsm.c
@@ -2120,10 +2120,12 @@ static int stfsm_probe(struct platform_device *pdev)
 		(long long)fsm->mtd.size, (long long)(fsm->mtd.size >> 20),
 		fsm->mtd.erasesize, (fsm->mtd.erasesize >> 10));
 
-	return mtd_device_register(&fsm->mtd, NULL, 0);
-
+	ret = mtd_device_register(&fsm->mtd, NULL, 0);
+	if (ret) {
 err_clk_unprepare:
-	clk_disable_unprepare(fsm->clk);
+		clk_disable_unprepare(fsm->clk);
+	}
+
 	return ret;
 }