diff --git a/backport-fix-opendir-fails-in-check_platform_device.patch b/backport-fix-opendir-fails-in-check_platform_device.patch
new file mode 100644
index 0000000..7574247
--- /dev/null
+++ b/backport-fix-opendir-fails-in-check_platform_device.patch
@@ -0,0 +1,39 @@
+From a9f0290a6754a475eb95818dd38dc401370da071 Mon Sep 17 00:00:00 2001
+From: liuchao173 <55137861+liuchao173@users.noreply.github.com>
+Date: Mon, 23 Aug 2021 19:40:41 +0800
+Subject: [PATCH] fix opendir fails in check_platform_device
+
+Reference: https://github.com/Irqbalance/irqbalance/commit/a9f0290a6754a475eb95818dd38dc401370da071
+Conflict: NA
+
+When irq name does not contain spaces, savedptr is an empty string and irq_fullname will have a extra space at the end like "LNRO0005:00 ".
+So opendir in check_platform_device will fail, and irqbalance prints log:
+"No directory /sys/devices/platform/LNRO0005:00 /: No such file or directory"
+---
+ procinterrupts.c | 10 ++++++----
+ 1 file changed, 6 insertions(+), 4 deletions(-)
+
+diff --git a/procinterrupts.c b/procinterrupts.c
+index e372671..9015177 100644
+--- a/procinterrupts.c
++++ b/procinterrupts.c
+@@ -178,10 +178,12 @@ void init_irq_class_and_type(char *savedline, struct irq_info *info, int irq)
+ 	}
+ 
+ #ifdef AARCH64
+-	snprintf(irq_fullname, PATH_MAX, "%s %s", last_token, savedptr);
+-	tmp = strchr(irq_fullname, '\n');
+-	if (tmp)
+-		*tmp = 0;
++	if (strlen(savedptr) > 0) {
++		snprintf(irq_fullname, PATH_MAX, "%s %s", last_token, savedptr);
++		tmp = strchr(irq_fullname, '\n');
++		if (tmp)
++			*tmp = 0;
++	}
+ #else
+ 	snprintf(irq_fullname, PATH_MAX, "%s", last_token);
+ #endif
+-- 
+2.33.0
+
diff --git a/irqbalance.spec b/irqbalance.spec
index 0824b1b..e6c97e8 100644
--- a/irqbalance.spec
+++ b/irqbalance.spec
@@ -1,7 +1,7 @@
 Summary:        A dynamic adaptive IRQ balancing daemon
 Name:           irqbalance
 Version:        1.7.0
-Release:        17
+Release:        18
 Epoch:          3
 License:        GPLv2
 Source0:        https://github.com/Irqbalance/irqbalance/archive/irqbalance-%{version}.tar.gz
@@ -36,6 +36,7 @@ Patch6011: backport-remove-no-existing-irq-in-banned_irqs.patch
 Patch6012: backport-Add-0-to-the-end-of-strings-to-avoid-heap-buffer-ove.patch
 Patch6013: backport-Fix-parse_proc_interrupts-fix-parsing-interrupt-counts.patch
 Patch6014: backport-Fix-add-keep_going-check-to-prevent-irqbalance-from-failing-to-exit-after-SIGTERM.patch
+Patch6015: backport-fix-opendir-fails-in-check_platform_device.patch
 
 %description
 Irqbalance is a daemon to help balance the cpu load generated by
@@ -93,6 +94,12 @@ fi
 /sbin/chkconfig --del %{name} >/dev/null 2>&1 || :
 
 %changelog
+* Thu Jan 5 2023 qinyu <qinyu32@huawei.com> - 3:1.7.0-18
+- Type:bugfix
+- ID:NA
+- SUG:restart
+- DESC: fix opendir fails in check_platform_device
+
 * Thu Jan 5 2023 qinyu <qinyu32@huawei.com> - 3:1.7.0-17
 - Type:bugfix
 - ID:NA