Merge tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core and debugfs updates from Greg KH:
 "Here is the "big" driver core and debugfs changes for 5.3-rc1

  It's a lot of different patches, all across the tree due to some api
  changes and lots of debugfs cleanups.

  Other than the debugfs cleanups, in this set of changes we have:

   - bus iteration function cleanups

   - scripts/get_abi.pl tool to display and parse Documentation/ABI
     entries in a simple way

   - cleanups to Documenatation/ABI/ entries to make them parse easier
     due to typos and other minor things

   - default_attrs use for some ktype users

   - driver model documentation file conversions to .rst

   - compressed firmware file loading

   - deferred probe fixes

  All of these have been in linux-next for a while, with a bunch of
  merge issues that Stephen has been patient with me for"

* tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (102 commits)
  debugfs: make error message a bit more verbose
  orangefs: fix build warning from debugfs cleanup patch
  ubifs: fix build warning after debugfs cleanup patch
  driver: core: Allow subsystems to continue deferring probe
  drivers: base: cacheinfo: Ensure cpu hotplug work is done before Intel RDT
  arch_topology: Remove error messages on out-of-memory conditions
  lib: notifier-error-inject: no need to check return value of debugfs_create functions
  swiotlb: no need to check return value of debugfs_create functions
  ceph: no need to check return value of debugfs_create functions
  sunrpc: no need to check return value of debugfs_create functions
  ubifs: no need to check return value of debugfs_create functions
  orangefs: no need to check return value of debugfs_create functions
  nfsd: no need to check return value of debugfs_create functions
  lib: 842: no need to check return value of debugfs_create functions
  debugfs: provide pr_fmt() macro
  debugfs: log errors when something goes wrong
  drivers: s390/cio: Fix compilation warning about const qualifiers
  drivers: Add generic helper to match by of_node
  driver_find_device: Unify the match function with class_find_device()
  bus_find_device: Unify the match callback with class_find_device
  ...

4 files changed, 32 insertions, 146 deletions

diff --git a/drivers/misc/genwqe/card_base.c b/drivers/misc/genwqe/card_base.c
index ab7f2cd21c93..1dc6c7c5cbce 100644
--- a/drivers/misc/genwqe/card_base.c
+++ b/drivers/misc/genwqe/card_base.c
@@ -1369,10 +1369,6 @@ static int __init genwqe_init_module(void)
 	class_genwqe->devnode = genwqe_devnode;
 
 	debugfs_genwqe = debugfs_create_dir(GENWQE_DEVNAME, NULL);
-	if (!debugfs_genwqe) {
-		rc = -ENOMEM;
-		goto err_out;
-	}
 
 	rc = pci_register_driver(&genwqe_driver);
 	if (rc != 0) {
@@ -1384,7 +1380,6 @@ static int __init genwqe_init_module(void)
 
  err_out0:
 	debugfs_remove(debugfs_genwqe);
- err_out:
 	class_destroy(class_genwqe);
 	return rc;
 }
diff --git a/drivers/misc/genwqe/card_base.h b/drivers/misc/genwqe/card_base.h
index 2f6dd2f37942..0e902977d35f 100644
--- a/drivers/misc/genwqe/card_base.h
+++ b/drivers/misc/genwqe/card_base.h
@@ -437,7 +437,7 @@ int  genwqe_device_create(struct genwqe_dev *cd);
 int  genwqe_device_remove(struct genwqe_dev *cd);
 
 /* debugfs */
-int  genwqe_init_debugfs(struct genwqe_dev *cd);
+void genwqe_init_debugfs(struct genwqe_dev *cd);
 void genqwe_exit_debugfs(struct genwqe_dev *cd);
 
 int  genwqe_read_softreset(struct genwqe_dev *cd);
diff --git a/drivers/misc/genwqe/card_debugfs.c b/drivers/misc/genwqe/card_debugfs.c
index 49c945d0c488..1b5b82e65268 100644
--- a/drivers/misc/genwqe/card_debugfs.c
+++ b/drivers/misc/genwqe/card_debugfs.c
@@ -316,11 +316,9 @@ static int info_show(struct seq_file *s, void *unused)
 
 DEFINE_SHOW_ATTRIBUTE(info);
 
-int genwqe_init_debugfs(struct genwqe_dev *cd)
+void genwqe_init_debugfs(struct genwqe_dev *cd)
 {
 	struct dentry *root;
-	struct dentry *file;
-	int ret;
 	char card_name[64];
 	char name[64];
 	unsigned int i;
@@ -328,153 +326,50 @@ int genwqe_init_debugfs(struct genwqe_dev *cd)
 	sprintf(card_name, "%s%d_card", GENWQE_DEVNAME, cd->card_idx);
 
 	root = debugfs_create_dir(card_name, cd->debugfs_genwqe);
-	if (!root) {
-		ret = -ENOMEM;
-		goto err0;
-	}
 
 	/* non privileged interfaces are done here */
-	file = debugfs_create_file("ddcb_info", S_IRUGO, root, cd,
-				   &ddcb_info_fops);
-	if (!file) {
-		ret = -ENOMEM;
-		goto err1;
-	}
-
-	file = debugfs_create_file("info", S_IRUGO, root, cd,
-				   &info_fops);
-	if (!file) {
-		ret = -ENOMEM;
-		goto err1;
-	}
-
-	file = debugfs_create_x64("err_inject", 0666, root, &cd->err_inject);
-	if (!file) {
-		ret = -ENOMEM;
-		goto err1;
-	}
-
-	file = debugfs_create_u32("ddcb_software_timeout", 0666, root,
-				  &cd->ddcb_software_timeout);
-	if (!file) {
-		ret = -ENOMEM;
-		goto err1;
-	}
-
-	file = debugfs_create_u32("kill_timeout", 0666, root,
-				  &cd->kill_timeout);
-	if (!file) {
-		ret = -ENOMEM;
-		goto err1;
-	}
+	debugfs_create_file("ddcb_info", S_IRUGO, root, cd, &ddcb_info_fops);
+	debugfs_create_file("info", S_IRUGO, root, cd, &info_fops);
+	debugfs_create_x64("err_inject", 0666, root, &cd->err_inject);
+	debugfs_create_u32("ddcb_software_timeout", 0666, root,
+			   &cd->ddcb_software_timeout);
+	debugfs_create_u32("kill_timeout", 0666, root, &cd->kill_timeout);
 
 	/* privileged interfaces follow here */
 	if (!genwqe_is_privileged(cd)) {
 		cd->debugfs_root = root;
-		return 0;
+		return;
 	}
 
-	file = debugfs_create_file("curr_regs", S_IRUGO, root, cd,
-				   &curr_regs_fops);
-	if (!file) {
-		ret = -ENOMEM;
-		goto err1;
-	}
-
-	file = debugfs_create_file("curr_dbg_uid0", S_IRUGO, root, cd,
-				   &curr_dbg_uid0_fops);
-	if (!file) {
-		ret = -ENOMEM;
-		goto err1;
-	}
-
-	file = debugfs_create_file("curr_dbg_uid1", S_IRUGO, root, cd,
-				   &curr_dbg_uid1_fops);
-	if (!file) {
-		ret = -ENOMEM;
-		goto err1;
-	}
-
-	file = debugfs_create_file("curr_dbg_uid2", S_IRUGO, root, cd,
-				   &curr_dbg_uid2_fops);
-	if (!file) {
-		ret = -ENOMEM;
-		goto err1;
-	}
-
-	file = debugfs_create_file("prev_regs", S_IRUGO, root, cd,
-				   &prev_regs_fops);
-	if (!file) {
-		ret = -ENOMEM;
-		goto err1;
-	}
-
-	file = debugfs_create_file("prev_dbg_uid0", S_IRUGO, root, cd,
-				   &prev_dbg_uid0_fops);
-	if (!file) {
-		ret = -ENOMEM;
-		goto err1;
-	}
-
-	file = debugfs_create_file("prev_dbg_uid1", S_IRUGO, root, cd,
-				   &prev_dbg_uid1_fops);
-	if (!file) {
-		ret = -ENOMEM;
-		goto err1;
-	}
-
-	file = debugfs_create_file("prev_dbg_uid2", S_IRUGO, root, cd,
-				   &prev_dbg_uid2_fops);
-	if (!file) {
-		ret = -ENOMEM;
-		goto err1;
-	}
+	debugfs_create_file("curr_regs", S_IRUGO, root, cd, &curr_regs_fops);
+	debugfs_create_file("curr_dbg_uid0", S_IRUGO, root, cd,
+			    &curr_dbg_uid0_fops);
+	debugfs_create_file("curr_dbg_uid1", S_IRUGO, root, cd,
+			    &curr_dbg_uid1_fops);
+	debugfs_create_file("curr_dbg_uid2", S_IRUGO, root, cd,
+			    &curr_dbg_uid2_fops);
+	debugfs_create_file("prev_regs", S_IRUGO, root, cd, &prev_regs_fops);
+	debugfs_create_file("prev_dbg_uid0", S_IRUGO, root, cd,
+			    &prev_dbg_uid0_fops);
+	debugfs_create_file("prev_dbg_uid1", S_IRUGO, root, cd,
+			    &prev_dbg_uid1_fops);
+	debugfs_create_file("prev_dbg_uid2", S_IRUGO, root, cd,
+			    &prev_dbg_uid2_fops);
 
 	for (i = 0; i <  GENWQE_MAX_VFS; i++) {
 		sprintf(name, "vf%u_jobtimeout_msec", i);
-
-		file = debugfs_create_u32(name, 0666, root,
-					  &cd->vf_jobtimeout_msec[i]);
-		if (!file) {
-			ret = -ENOMEM;
-			goto err1;
-		}
+		debugfs_create_u32(name, 0666, root,
+				   &cd->vf_jobtimeout_msec[i]);
 	}
 
-	file = debugfs_create_file("jobtimer", S_IRUGO, root, cd,
-				   &jtimer_fops);
-	if (!file) {
-		ret = -ENOMEM;
-		goto err1;
-	}
-
-	file = debugfs_create_file("queue_working_time", S_IRUGO, root, cd,
-				   &queue_working_time_fops);
-	if (!file) {
-		ret = -ENOMEM;
-		goto err1;
-	}
-
-	file = debugfs_create_u32("skip_recovery", 0666, root,
-				  &cd->skip_recovery);
-	if (!file) {
-		ret = -ENOMEM;
-		goto err1;
-	}
-
-	file = debugfs_create_u32("use_platform_recovery", 0666, root,
-				  &cd->use_platform_recovery);
-	if (!file) {
-		ret = -ENOMEM;
-		goto err1;
-	}
+	debugfs_create_file("jobtimer", S_IRUGO, root, cd, &jtimer_fops);
+	debugfs_create_file("queue_working_time", S_IRUGO, root, cd,
+			    &queue_working_time_fops);
+	debugfs_create_u32("skip_recovery", 0666, root, &cd->skip_recovery);
+	debugfs_create_u32("use_platform_recovery", 0666, root,
+			   &cd->use_platform_recovery);
 
 	cd->debugfs_root = root;
-	return 0;
-err1:
-	debugfs_remove_recursive(root);
-err0:
-	return ret;
 }
 
 void genqwe_exit_debugfs(struct genwqe_dev *cd)
diff --git a/drivers/misc/genwqe/card_dev.c b/drivers/misc/genwqe/card_dev.c
index 3bc51f19c734..0e34c0568fed 100644
--- a/drivers/misc/genwqe/card_dev.c
+++ b/drivers/misc/genwqe/card_dev.c
@@ -1301,14 +1301,10 @@ int genwqe_device_create(struct genwqe_dev *cd)
 		goto err_cdev;
 	}
 
-	rc = genwqe_init_debugfs(cd);
-	if (rc != 0)
-		goto err_debugfs;
+	genwqe_init_debugfs(cd);
 
 	return 0;
 
- err_debugfs:
-	device_destroy(cd->class_genwqe, cd->devnum_genwqe);
  err_cdev:
 	cdev_del(&cd->cdev_genwqe);
  err_add: