powerpc/eeh: Remove unused return path from eeh_pe_dev_traverse()

There are no users of the early-out return value from
eeh_pe_dev_traverse(), so remove it.

Signed-off-by: Sam Bobroff <sbobroff@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/c648070f5b28fe8ca1880b48e64b267959ffd369.1565930772.git.sbobroff@linux.ibm.com
diff --git a/arch/powerpc/include/asm/eeh.h b/arch/powerpc/include/asm/eeh.h
index 56c1b4b..c13119a 100644
--- a/arch/powerpc/include/asm/eeh.h
+++ b/arch/powerpc/include/asm/eeh.h
@@ -260,7 +260,7 @@ static inline bool eeh_state_active(int state)
 	== (EEH_STATE_MMIO_ACTIVE | EEH_STATE_DMA_ACTIVE);
 }
 
-typedef void *(*eeh_edev_traverse_func)(struct eeh_dev *edev, void *flag);
+typedef void (*eeh_edev_traverse_func)(struct eeh_dev *edev, void *flag);
 typedef void *(*eeh_pe_traverse_func)(struct eeh_pe *pe, void *flag);
 void eeh_set_pe_aux_size(int size);
 int eeh_phb_pe_create(struct pci_controller *phb);
@@ -274,8 +274,8 @@ int eeh_rmv_from_parent_pe(struct eeh_dev *edev);
 void eeh_pe_update_time_stamp(struct eeh_pe *pe);
 void *eeh_pe_traverse(struct eeh_pe *root,
 		      eeh_pe_traverse_func fn, void *flag);
-void *eeh_pe_dev_traverse(struct eeh_pe *root,
-			  eeh_edev_traverse_func fn, void *flag);
+void eeh_pe_dev_traverse(struct eeh_pe *root,
+			 eeh_edev_traverse_func fn, void *flag);
 void eeh_pe_restore_bars(struct eeh_pe *pe);
 const char *eeh_pe_loc_get(struct eeh_pe *pe);
 struct pci_bus *eeh_pe_bus_get(struct eeh_pe *pe);