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| author | Jason Baron <jbaron@redhat.com> | 2010-07-27 13:18:01 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-07-27 14:32:06 -0700 |
| commit | b82bab4bbe9efa7bc7177fc20620fff19bd95484 (patch) | |
| tree | c033a090fbd3caa61f2f3b6ece52c0b4dffeb229 /kernel/module.c | |
| parent | d15aa2cc641bd193596382357de917b32f1b40cb (diff) | |
| download | lwn-b82bab4bbe9efa7bc7177fc20620fff19bd95484.tar.gz lwn-b82bab4bbe9efa7bc7177fc20620fff19bd95484.zip | |
dynamic debug: move ddebug_remove_module() down into free_module()
The command
echo "file ec.c +p" >/sys/kernel/debug/dynamic_debug/control
causes an oops.
Move the call to ddebug_remove_module() down into free_module(). In this
way it should be called from all error paths. Currently, we are missing
the remove if the module init routine fails.
Signed-off-by: Jason Baron <jbaron@redhat.com>
Reported-by: Thomas Renninger <trenn@suse.de>
Tested-by: Thomas Renninger <trenn@suse.de>
Cc: <stable@kernel.org> [2.6.32+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/module.c')
| -rw-r--r-- | kernel/module.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/kernel/module.c b/kernel/module.c index 5d2d28197c82..6c562828c85c 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -787,7 +787,6 @@ SYSCALL_DEFINE2(delete_module, const char __user *, name_user, /* Store the name of the last unloaded module for diagnostic purposes */ strlcpy(last_unloaded_module, mod->name, sizeof(last_unloaded_module)); - ddebug_remove_module(mod->name); free_module(mod); return 0; @@ -1550,6 +1549,9 @@ static void free_module(struct module *mod) remove_sect_attrs(mod); mod_kobject_remove(mod); + /* Remove dynamic debug info */ + ddebug_remove_module(mod->name); + /* Arch-specific cleanup. */ module_arch_cleanup(mod); |