[PATCH -next] PCI: endpoint: Use helper function IS_ERR_OR_NULL()

[Ruan Jinjie <ruanjinjie@xxxxxxxxxx>]

Use IS_ERR_OR_NULL() instead of open-coding it
to simplify the code.

Signed-off-by: Ruan Jinjie <ruanjinjie@xxxxxxxxxx>
---
 drivers/pci/endpoint/pci-epc-core.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/pci/endpoint/pci-epc-core.c b/drivers/pci/endpoint/pci-epc-core.c
index 5a4a8b0be626..fe421d46a8a4 100644
--- a/drivers/pci/endpoint/pci-epc-core.c
+++ b/drivers/pci/endpoint/pci-epc-core.c
@@ -38,7 +38,7 @@ static int devm_pci_epc_match(struct device *dev, void *res, void *match_data)
  */
 void pci_epc_put(struct pci_epc *epc)
 {
-	if (!epc || IS_ERR(epc))
+	if (IS_ERR_OR_NULL(epc))
 		return;
 
 	module_put(epc->ops->owner);
@@ -660,7 +660,7 @@ void pci_epc_remove_epf(struct pci_epc *epc, struct pci_epf *epf,
 	struct list_head *list;
 	u32 func_no = 0;
 
-	if (!epc || IS_ERR(epc) || !epf)
+	if (IS_ERR_OR_NULL(epc) || !epf)
 		return;
 
 	if (type == PRIMARY_INTERFACE) {
@@ -691,7 +691,7 @@ void pci_epc_linkup(struct pci_epc *epc)
 {
 	struct pci_epf *epf;
 
-	if (!epc || IS_ERR(epc))
+	if (IS_ERR_OR_NULL(epc))
 		return;
 
 	mutex_lock(&epc->list_lock);
@@ -717,7 +717,7 @@ void pci_epc_linkdown(struct pci_epc *epc)
 {
 	struct pci_epf *epf;
 
-	if (!epc || IS_ERR(epc))
+	if (IS_ERR_OR_NULL(epc))
 		return;
 
 	mutex_lock(&epc->list_lock);
@@ -743,7 +743,7 @@ void pci_epc_init_notify(struct pci_epc *epc)
 {
 	struct pci_epf *epf;
 
-	if (!epc || IS_ERR(epc))
+	if (IS_ERR_OR_NULL(epc))
 		return;
 
 	mutex_lock(&epc->list_lock);
@@ -769,7 +769,7 @@ void pci_epc_bme_notify(struct pci_epc *epc)
 {
 	struct pci_epf *epf;
 
-	if (!epc || IS_ERR(epc))
+	if (IS_ERR_OR_NULL(epc))
 		return;
 
 	mutex_lock(&epc->list_lock);
-- 
2.34.1