From: Stéphane Graber <stgraber@ubuntu.com>
Date: Sun, 13 Mar 2022 03:34:15 +0000 (-0500)
Subject: sysfs: Don't incorrectly filter entries
X-Git-Tag: v6.0.0~53^2~1
X-Git-Url: https://git.proxmox.com/?p=mirror_lxcfs.git;a=commitdiff_plain;h=ece0d2bbbc39d2408d21c28b3c1b411f7f19fd62

sysfs: Don't incorrectly filter entries

The filtering logic was completely skipping any entry which was 3
characters or shorter. Instead change the logic to only attempt to parse
those entries longer than 3 characters.

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
---

diff --git a/src/sysfs_fuse.c b/src/sysfs_fuse.c
index 17b93c1..30333bd 100644
--- a/src/sysfs_fuse.c
+++ b/src/sysfs_fuse.c
@@ -314,13 +314,13 @@ static int filler_sys_devices_system_cpu(const char *path, void *buf,
 	while ((dirent = readdir(dir))) {
 		char *entry = dirent->d_name;
 
-		if (strlen(entry) <= 3)
-			continue;
-		entry += 3;
+		if (strlen(entry) > 3) {
+			entry += 3;
 
-		/* Don't emit entries we already filtered above. */
-		if (isdigit(*entry))
-			continue;
+			/* Don't emit entries we already filtered above. */
+			if (isdigit(*entry))
+				continue;
+		}
 
 		if (dirent_fillerat(filler, dir, dirent, buf, 0) != 0)
 			return -ENOENT;