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-rw-r--r--src/udev/udev-builtin-net_id.c21
1 files changed, 9 insertions, 12 deletions
diff --git a/src/udev/udev-builtin-net_id.c b/src/udev/udev-builtin-net_id.c
index ae3b6459f7..ae32d2f104 100644
--- a/src/udev/udev-builtin-net_id.c
+++ b/src/udev/udev-builtin-net_id.c
@@ -149,25 +149,22 @@ static int dev_pci_onboard(struct udev_device *dev, struct netnames *names) {
/* read the 256 bytes PCI configuration space to check the multi-function bit */
static bool is_pci_multifunction(struct udev_device *dev) {
- char filename[256];
- FILE *f = NULL;
- char config[64];
- bool multi = false;
+ _cleanup_fclose_ FILE *f = NULL;
+ const char *filename;
+ uint8_t config[64];
- snprintf(filename, sizeof(filename), "%s/config", udev_device_get_syspath(dev));
+ filename = strappenda(udev_device_get_syspath(dev), "/config");
f = fopen(filename, "re");
if (!f)
- goto out;
+ return false;
if (fread(&config, sizeof(config), 1, f) != 1)
- goto out;
+ return false;
/* bit 0-6 header type, bit 7 multi/single function device */
if ((config[PCI_HEADER_TYPE] & 0x80) != 0)
- multi = true;
-out:
- if (f)
- fclose(f);
- return multi;
+ return true;
+
+ return false;
}
static int dev_pci_slot(struct udev_device *dev, struct netnames *names) {