[U-Boot] [PATCH] 4xx_pci.c: add error checking, fix GCC 4.6 build warning

[Wolfgang Denk]

Fix:
4xx_pci.c: In function 'pci_init_board':
4xx_pci.c:855:6: warning: variable 'busno' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk <wd at denx.de>
Cc: Stefan Roese <sr at denx.de>
---
 arch/powerpc/cpu/ppc4xx/4xx_pci.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/cpu/ppc4xx/4xx_pci.c b/arch/powerpc/cpu/ppc4xx/4xx_pci.c
index 80b0c1c..2ca355b 100644
--- a/arch/powerpc/cpu/ppc4xx/4xx_pci.c
+++ b/arch/powerpc/cpu/ppc4xx/4xx_pci.c
@@ -707,7 +707,7 @@ void pci_master_init(struct pci_controller *hose)
 #endif /* CONFIG_SYS_PCI_MASTER_INIT */
 
 #if defined(CONFIG_SYS_PCI_MASTER_INIT) || defined(CONFIG_SYS_PCI_TARGET_INIT)
-int pci_440_init (struct pci_controller *hose)
+static int pci_440_init (struct pci_controller *hose)
 {
 	int reg_num = 0;
 
@@ -859,7 +859,9 @@ void pci_init_board(void)
 	 * is selected.
 	 */
 #if defined(CONFIG_SYS_PCI_MASTER_INIT) || defined(CONFIG_SYS_PCI_TARGET_INIT)
-	busno = pci_440_init (&ppc440_hose);
+	busno = pci_440_init(&ppc440_hose);
+	if (busno < 0)
+		return;
 #endif
 #if (defined(CONFIG_440SPE) || \
     defined(CONFIG_460EX) || defined(CONFIG_460GT)) && \
-- 
1.7.6.4