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Commit 12bac0d9 authored by Alexey Dobriyan's avatar Alexey Dobriyan Committed by Linus Torvalds
Browse files

proc: warn on non-existing proc entries 



* warn if creation goes on to non-existent directory
* warn if removal goes on from non-existing directory
* warn if non-existing proc entry is removed

Signed-off-by: default avatarAlexey Dobriyan <adobriyan@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent e17a5765

fs/proc/generic.c

+6 −2
Original line number Diff line number Diff line
@@ -312,8 +312,10 @@ static int __xlate_proc_name(const char *name, struct proc_dir_entry **ret, 
			if (proc_match(len, cp, de))

				break;

		}

		if (!de)

		if (!de) {

			WARN(1, "name '%s'\n", name);

			return -ENOENT;

		}

		cp += len + 1;

	}

	*residual = cp;
@@ -818,8 +820,10 @@ void remove_proc_entry(const char *name, struct proc_dir_entry *parent) 
		}

	}

	spin_unlock(&proc_subdir_lock);

	if (!de)

	if (!de) {

		WARN(1, "name '%s'\n", name);

		return;

	}



	spin_lock(&de->pde_unload_lock);

	/*