From 4ff1b159dd6eb34249c4f2681daf295205897ee7 Mon Sep 17 00:00:00 2001
From: Steffen Vogel <steffen.vogel@opal-rt.com>
Date: Thu, 12 Jan 2023 18:17:55 +0100
Subject: [PATCH] pcie: use scanff instead of istringstream

Signed-off-by: Steffen Vogel <steffen.vogel@opal-rt.com>
---
 common/lib/kernel/pci.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/common/lib/kernel/pci.cpp b/common/lib/kernel/pci.cpp
index dbf2b620b..9199f0dd4 100644
--- a/common/lib/kernel/pci.cpp
+++ b/common/lib/kernel/pci.cpp
@@ -378,7 +378,8 @@ uint32_t Device::readHostBar(unsigned barNum) const
 		throw RuntimeError("Failed to read resource file");
 
 	unsigned long long start, end, flags;
-	std::istringstream(line) >> std::hex >> start >> end >> flags;
+	if (std::sscanf(line.c_str(), "%llx %llx %llx", &start, &end, &flags) != 3)
+		throw SystemError("Failed to parse BAR line");
 
 	if (end > start)
 		throw SystemError("Invalid BAR: start={}, end={}", start, end);