46b5a2ed8f
procinterrupts: Fix IRQ name parsing on certain arm64 SoC Signed-off-by: qinyu <qinyu32@huawei.com>
40 lines
1.3 KiB
Diff
40 lines
1.3 KiB
Diff
From a9f0290a6754a475eb95818dd38dc401370da071 Mon Sep 17 00:00:00 2001
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From: liuchao173 <55137861+liuchao173@users.noreply.github.com>
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Date: Mon, 23 Aug 2021 19:40:41 +0800
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Subject: [PATCH] fix opendir fails in check_platform_device
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Reference: https://github.com/Irqbalance/irqbalance/commit/a9f0290a6754a475eb95818dd38dc401370da071
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Conflict: NA
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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 ".
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So opendir in check_platform_device will fail, and irqbalance prints log:
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"No directory /sys/devices/platform/LNRO0005:00 /: No such file or directory"
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---
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procinterrupts.c | 10 ++++++----
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1 file changed, 6 insertions(+), 4 deletions(-)
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diff --git a/procinterrupts.c b/procinterrupts.c
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index e372671..9015177 100644
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--- a/procinterrupts.c
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+++ b/procinterrupts.c
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@@ -178,10 +178,12 @@ void init_irq_class_and_type(char *savedline, struct irq_info *info, int irq)
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}
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#ifdef AARCH64
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- snprintf(irq_fullname, PATH_MAX, "%s %s", last_token, savedptr);
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- tmp = strchr(irq_fullname, '\n');
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- if (tmp)
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- *tmp = 0;
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+ if (strlen(savedptr) > 0) {
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+ snprintf(irq_fullname, PATH_MAX, "%s %s", last_token, savedptr);
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+ tmp = strchr(irq_fullname, '\n');
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+ if (tmp)
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+ *tmp = 0;
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+ }
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#else
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snprintf(irq_fullname, PATH_MAX, "%s", last_token);
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#endif
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--
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2.33.0
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