From: Bjorn Helgaas <bhelgaas@google.com>
Date: Thu, 24 Aug 2023 18:40:29 +0000 (-0500)
Subject: PCI: Simplify pcie_capability_clear_and_set_word() control flow
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=294c1e4fa73f545c7e1ac7e90a447c18094b318b;p=linux.git

PCI: Simplify pcie_capability_clear_and_set_word() control flow

Return early for errors in pcie_capability_clear_and_set_word_unlocked()
and pcie_capability_clear_and_set_dword() to simplify the control flow.

No functional change intended.

Link: https://lore.kernel.org/r/20230824193712.542167-13-helgaas@kernel.org
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---

diff --git a/drivers/pci/access.c b/drivers/pci/access.c
index 0b2e90d2f04f2..6554a2e89d361 100644
--- a/drivers/pci/access.c
+++ b/drivers/pci/access.c
@@ -504,13 +504,12 @@ int pcie_capability_clear_and_set_word_unlocked(struct pci_dev *dev, int pos,
 	u16 val;
 
 	ret = pcie_capability_read_word(dev, pos, &val);
-	if (!ret) {
-		val &= ~clear;
-		val |= set;
-		ret = pcie_capability_write_word(dev, pos, val);
-	}
+	if (ret)
+		return ret;
 
-	return ret;
+	val &= ~clear;
+	val |= set;
+	return pcie_capability_write_word(dev, pos, val);
 }
 EXPORT_SYMBOL(pcie_capability_clear_and_set_word_unlocked);
 
@@ -535,13 +534,12 @@ int pcie_capability_clear_and_set_dword(struct pci_dev *dev, int pos,
 	u32 val;
 
 	ret = pcie_capability_read_dword(dev, pos, &val);
-	if (!ret) {
-		val &= ~clear;
-		val |= set;
-		ret = pcie_capability_write_dword(dev, pos, val);
-	}
+	if (ret)
+		return ret;
 
-	return ret;
+	val &= ~clear;
+	val |= set;
+	return pcie_capability_write_dword(dev, pos, val);
 }
 EXPORT_SYMBOL(pcie_capability_clear_and_set_dword);