misc: sram: fix error path in sram_probe

The pool is created thru devm_gen_pool_create, so the call to
gen_pool_destroy is not necessary.
Instead the sram-clock must be turned off again if it exists.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Ulrich Prinz <ulrich.prinz@googlemail.com>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/misc/sram.c

@@ -68,7 +68,8 @@ static int sram_probe(struct platform_device *pdev)
 	ret = gen_pool_add_virt(sram->pool, (unsigned long)virt_base,
 				res->start, size, -1);
 	if (ret < 0) {
-		gen_pool_destroy(sram->pool);
+		if (sram->clk)
+			clk_disable_unprepare(sram->clk);
 		return ret;
 	}