From: huhai <huhai@tj.kylinos.cn>
Date: Thu, 21 May 2020 07:26:48 +0000 (+1000)
Subject: powerpc/4xx: Don't unmap NULL mbase
X-Git-Tag: v5.4.49~113
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=5ed5f8db95821c14f37483b950d0dd31bf592981;p=platform%2Fkernel%2Flinux-rpi.git

powerpc/4xx: Don't unmap NULL mbase

[ Upstream commit bcec081ecc940fc38730b29c743bbee661164161 ]

Signed-off-by: huhai <huhai@tj.kylinos.cn>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200521072648.1254699-1-mpe@ellerman.id.au
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/arch/powerpc/platforms/4xx/pci.c b/arch/powerpc/platforms/4xx/pci.c
index e6e2adc..c13d64c 100644
--- a/arch/powerpc/platforms/4xx/pci.c
+++ b/arch/powerpc/platforms/4xx/pci.c
@@ -1242,7 +1242,7 @@ static void __init ppc460sx_pciex_check_link(struct ppc4xx_pciex_port *port)
 	if (mbase == NULL) {
 		printk(KERN_ERR "%pOF: Can't map internal config space !",
 			port->node);
-		goto done;
+		return;
 	}
 
 	while (attempt && (0 == (in_le32(mbase + PECFG_460SX_DLLSTA)
@@ -1252,9 +1252,7 @@ static void __init ppc460sx_pciex_check_link(struct ppc4xx_pciex_port *port)
 	}
 	if (attempt)
 		port->link = 1;
-done:
 	iounmap(mbase);
-
 }
 
 static struct ppc4xx_pciex_hwops ppc460sx_pcie_hwops __initdata = {