diff options
| author | Rasmus Villemoes <linux@rasmusvillemoes.dk> | 2019-03-07 16:27:48 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-03-07 18:32:00 -0800 |
| commit | 513770f54edba8b19c2175a151e02f1dfc911d87 (patch) | |
| tree | 5eecc585065859b4a42006c16fe45068f6b872ac /lib | |
| parent | f008043bd3b5ca7f2c65dbdad8ea6df0a6f134f3 (diff) | |
dynamic_debug: move pr_err from module.c to ddebug_add_module
This serves two purposes: First, we get a diagnostic if (though
extremely unlikely), any of the calls of ddebug_add_module for built-in
code fails, effectively disabling dynamic_debug. Second, I want to make
struct _ddebug opaque, and avoid accessing any of its members outside
dynamic_debug.[ch].
Link: http://lkml.kernel.org/r/20190212214150.4807-9-linux@rasmusvillemoes.dk
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Acked-by: Jason Baron <jbaron@akamai.com>
Cc: David Sterba <dsterba@suse.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Petr Mladek <pmladek@suse.com>
Cc: "Rafael J . Wysocki" <rafael.j.wysocki@intel.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/dynamic_debug.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c index 7b76f43edaef..7bdf98c37e91 100644 --- a/lib/dynamic_debug.c +++ b/lib/dynamic_debug.c @@ -849,8 +849,10 @@ int ddebug_add_module(struct _ddebug *tab, unsigned int n, struct ddebug_table *dt; dt = kzalloc(sizeof(*dt), GFP_KERNEL); - if (dt == NULL) + if (dt == NULL) { + pr_err("error adding module: %s\n", name); return -ENOMEM; + } /* * For built-in modules, name lives in .rodata and is * immortal. For loaded modules, name points at the name[] |