X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=wait_for_sysfs.c;h=42b9d383dc9cc51467954964dc2028f35ea78c11;hb=2092fbcdebf5313f29b43bdaa57a22baf0c0269f;hp=e7eed441eee628bfac670aae6988fbfd9282a54e;hpb=f071348004c8069b610effd95309ff47c515cf3e;p=elogind.git

diff --git a/wait_for_sysfs.c b/wait_for_sysfs.c
index e7eed441e..42b9d383d 100644
--- a/wait_for_sysfs.c
+++ b/wait_for_sysfs.c
@@ -96,9 +96,15 @@ int main(int argc, char *argv[], char *envp[])
 	}
 
 	if ((strncmp(devpath, "/block/", 7) == 0) || (strncmp(devpath, "/class/", 7) == 0)) {
-		snprintf(filename, SYSFS_PATH_MAX-1, "%s%s", sysfs_mnt_path, devpath);
+		snprintf(filename, SYSFS_PATH_MAX, "%s%s", sysfs_mnt_path, devpath);
 		filename[SYSFS_PATH_MAX-1] = '\0';
 
+		/* skip bad events where we get no device for the class */
+		if (strncmp(devpath, "/class/", 7) == 0 && strchr(&devpath[7], '/') == NULL) {
+			dbg("no device name for '%s', bad event", devpath);
+			goto exit;
+		}
+
 		/* open the class device we are called for */
 		class_dev = open_class_device_wait(filename);
 		if (!class_dev) {
@@ -110,10 +116,19 @@ int main(int argc, char *argv[], char *envp[])
 		/* wait for the class device with possible physical device and bus */
 		wait_for_class_device(class_dev, &error);
 
+		/*
+		 * we got too many unfixable class/net errors, kernel later than 2.6.10-rc1 will
+		 * solve this by exporting the needed information with the hotplug event
+		 * until we use this just don't print any error for net devices, but still
+		 * wait for it.
+		 */
+		if (strncmp(devpath, "/class/net/", 11) == 0)
+			error = NULL;
+
 		sysfs_close_class_device(class_dev);
 
 	} else if ((strncmp(devpath, "/devices/", 9) == 0)) {
-		snprintf(filename, SYSFS_PATH_MAX-1, "%s%s", sysfs_mnt_path, devpath);
+		snprintf(filename, SYSFS_PATH_MAX, "%s%s", sysfs_mnt_path, devpath);
 		filename[SYSFS_PATH_MAX-1] = '\0';
 
 		/* open the path we are called for */