proc: fix type of struct pde_opener::closing field

struct pde_opener::closing is boolean.

Link: http://lkml.kernel.org/r/20161029155439.GB1246@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

fs/proc/inode.c

@@ -147,7 +147,7 @@ static void close_pdeo(struct proc_dir_entry *pde, struct pde_opener *pdeo)
 		spin_lock(&pde->pde_unload_lock);
 	} else {
 		struct file *file;
-		pdeo->closing = 1;
+		pdeo->closing = true;
 		spin_unlock(&pde->pde_unload_lock);
 		file = pdeo->file;
 		pde->proc_fops->release(file_inode(file), file);

fs/proc/internal.h

@@ -203,7 +203,7 @@ struct proc_dir_entry *proc_create_mount_point(const char *name);
 struct pde_opener {
 	struct file *file;
 	struct list_head lh;
-	int closing;
+	bool closing;
 	struct completion *c;
 };
 extern const struct inode_operations proc_link_inode_operations;