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44 lines
1.3 KiB
44 lines
1.3 KiB
From caaa021290a1b84c44d084865c2512f4adf98297 Mon Sep 17 00:00:00 2001
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From: illiliti <illiliti@protonmail.com>
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Date: Fri, 8 Oct 2021 08:36:20 +0300
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Subject: [PATCH 08/15] udev_device.c: ignore devices without subsystem
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Do not allocate udev_device if device doesn't have subsystem.
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Fixes: #43
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---
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udev_device.c | 7 +++----
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1 file changed, 3 insertions(+), 4 deletions(-)
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--- a/udev_device.c
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+++ b/udev_device.c
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@@ -530,18 +530,18 @@ static void set_properties_from_props(st
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struct udev_device *udev_device_new_from_syspath(struct udev *udev, const char *syspath)
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{
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- char path[PATH_MAX], file[PATH_MAX];
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char *subsystem, *driver, *sysname;
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struct udev_device *udev_device;
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+ char path[PATH_MAX];
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int i;
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if (!udev || !syspath) {
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return NULL;
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}
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- snprintf(file, sizeof(file), "%s/uevent", syspath);
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+ subsystem = read_symlink(syspath, "subsystem");
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- if (access(file, R_OK) == -1) {
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+ if (!subsystem) {
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return NULL;
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}
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@@ -567,7 +567,6 @@ struct udev_device *udev_device_new_from
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sysname = strrchr(path, '/') + 1;
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driver = read_symlink(path, "driver");
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- subsystem = read_symlink(path, "subsystem");
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udev_list_entry_add(&udev_device->properties, "SUBSYSTEM", subsystem, 0);
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udev_list_entry_add(&udev_device->properties, "SYSNAME", sysname, 0);
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