[PATCH] crypto: ccp - Provide a roll-back method for debugfs setup

[Gary R Hook]

Signed-off-by: Gary R Hook <gary.h...@amd.com>
---
 drivers/crypto/ccp/ccp-debugfs.c |   18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/drivers/crypto/ccp/ccp-debugfs.c b/drivers/crypto/ccp/ccp-debugfs.c
index 3cd6c83754e0..99aba1622613 100644
--- a/drivers/crypto/ccp/ccp-debugfs.c
+++ b/drivers/crypto/ccp/ccp-debugfs.c
@@ -291,6 +291,7 @@ void ccp5_debugfs_setup(struct ccp_device *ccp)
        struct dentry *debugfs_q_instance;
        struct dentry *debugfs_q_stats;
        unsigned long flags;
+       int rc = 0;
        int i;
 
        if (!debugfs_initialized())
@@ -305,19 +306,19 @@ void ccp5_debugfs_setup(struct ccp_device *ccp)
 
        ccp->debugfs_instance = debugfs_create_dir(ccp->name, ccp_debugfs_dir);
        if (!ccp->debugfs_instance)
-               return;
+               goto err;
 
        debugfs_info = debugfs_create_file("info", 0400,
                                           ccp->debugfs_instance, ccp,
                                           &ccp_debugfs_info_ops);
        if (!debugfs_info)
-               return;
+               goto err;
 
        debugfs_stats = debugfs_create_file("stats", 0600,
                                            ccp->debugfs_instance, ccp,
                                            &ccp_debugfs_stats_ops);
        if (!debugfs_stats)
-               return;
+               goto err;
 
        for (i = 0; i < ccp->cmd_q_count; i++) {
                cmd_q = &ccp->cmd_q[i];
@@ -327,15 +328,22 @@ void ccp5_debugfs_setup(struct ccp_device *ccp)
                debugfs_q_instance =
                        debugfs_create_dir(name, ccp->debugfs_instance);
                if (!debugfs_q_instance)
-                       return;
+                       goto err;
 
                debugfs_q_stats =
                        debugfs_create_file("stats", 0600,
                                            debugfs_q_instance, cmd_q,
                                            &ccp_debugfs_queue_ops);
                if (!debugfs_q_stats)
-                       return;
+                       goto err;
        }
+       return;
+
+err:
+       write_lock_irqsave(&ccp_debugfs_lock, flags);
+       debugfs_remove_recursive(ccp_debugfs_dir);
+       ccp_debugfs_dir = NULL;
+       write_unlock_irqrestore(&ccp_debugfs_lock, flags);
 }
 
 void ccp5_debugfs_destroy(void)