util: simplify proc_cmdline() to reuse get_process_cmdline()

Also, make all parsing of the kernel cmdline non-fatal.

2 files changed, 5 insertions, 6 deletions

diff --git a/src/udev/net/link-config.c b/src/udev/net/link-config.c
index 428a71dce3..5aefb7d415 100644
--- a/src/udev/net/link-config.c
+++ b/src/udev/net/link-config.c
@@ -174,11 +174,10 @@ static bool enable_name_policy(void) {
         size_t l;
 
         r = proc_cmdline(&line);
-        if (r < 0)
-                log_warning("Failed to read /proc/cmdline, ignoring: %s",
-                            strerror(-r));
-        if (r <= 0)
+        if (r < 0) {
+                log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r));
                 return true;
+        }
 
         FOREACH_WORD_QUOTED(word, l, line, state)
                 if (strneq(word, "net.ifnames=0", l))
diff --git a/src/udev/udevd.c b/src/udev/udevd.c
index 305ce86cdf..a040529e6f 100644
--- a/src/udev/udevd.c
+++ b/src/udev/udevd.c
@@ -961,10 +961,10 @@ static void kernel_cmdline_options(struct udev *udev) {
         int r;
 
         r = proc_cmdline(&line);
-        if (r < 0)
+        if (r < 0) {
                 log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r));
-        if (r <= 0)
                 return;
+        }
 
         FOREACH_WORD_QUOTED(word, l, line, state) {
                 char *s, *opt, *value;