add wifi6 8852be driver

hc

2024-12-19 9370bb92b2d16684ee45cf24e879c93c509162da

 kernel/drivers/uio/uio.c
..
..
@@ -274,7 +274,7 @@
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274
 	.dev_groups = uio_groups,
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275
 };
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276
 
277
-bool uio_class_registered;
277
+static bool uio_class_registered;
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278
 
279
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 /*
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  * device functions
..
..
@@ -398,7 +398,7 @@
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398
 
399
399
 static int uio_get_minor(struct uio_device *idev)
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400
 {
401
-	int retval = -ENOMEM;
401
+	int retval;
402
402
 
403
403
 	mutex_lock(&minor_lock);
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404
 	retval = idr_alloc(&uio_idr, idev, 0, UIO_MAX_DEVICES, GFP_KERNEL);
..
..
@@ -491,10 +491,10 @@
491
491
 	if (!idev->info) {
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492
 		mutex_unlock(&idev->info_lock);
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493
 		ret = -EINVAL;
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-		goto err_alloc_listener;
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+		goto err_infoopen;
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495
 	}
496
496
 
497
-	if (idev->info && idev->info->open)
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+	if (idev->info->open)
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 		ret = idev->info->open(idev->info, inode);
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 	mutex_unlock(&idev->info_lock);
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 	if (ret)
..
..
@@ -569,20 +569,20 @@
569
569
 	ssize_t retval = 0;
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570
 	s32 event_count;
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571
 
572
-	mutex_lock(&idev->info_lock);
573
-	if (!idev->info || !idev->info->irq)
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-		retval = -EIO;
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-	mutex_unlock(&idev->info_lock);
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-
577
-	if (retval)
578
-		return retval;
579
-
580
572
 	if (count != sizeof(s32))
581
573
 		return -EINVAL;
582
574
 
583
575
 	add_wait_queue(&idev->wait, &wait);
584
576
 
585
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 	do {
578
+		mutex_lock(&idev->info_lock);
579
+		if (!idev->info || !idev->info->irq) {
580
+			retval = -EIO;
581
+			mutex_unlock(&idev->info_lock);
582
+			break;
583
+		}
584
+		mutex_unlock(&idev->info_lock);
585
+
586
586
 		set_current_state(TASK_INTERRUPTIBLE);
587
587
 
588
588
 		event_count = atomic_read(&idev->event);
..
..
@@ -635,7 +635,7 @@
635
635
 		goto out;
636
636
 	}
637
637
 
638
-	if (!idev->info || !idev->info->irq) {
638
+	if (!idev->info->irq) {
639
639
 		retval = -EIO;
640
640
 		goto out;
641
641
 	}
..
..
@@ -670,7 +670,7 @@
670
670
 	struct page *page;
671
671
 	unsigned long offset;
672
672
 	void *addr;
673
-	int ret = 0;
673
+	vm_fault_t ret = 0;
674
674
 	int mi;
675
675
 
676
676
 	mutex_lock(&idev->info_lock);
..
..
@@ -738,7 +738,8 @@
738
738
 		return -EINVAL;
739
739
 
740
740
 	vma->vm_ops = &uio_physical_vm_ops;
741
-	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
741
+	if (idev->info->mem[mi].memtype == UIO_MEM_PHYS)
742
+		vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
742
743
 
743
744
 	/*
744
745
 	 * We cannot use the vm_iomap_memory() helper here,
..
..
@@ -795,18 +796,19 @@
795
796
 	}
796
797
 
797
798
 	switch (idev->info->mem[mi].memtype) {
798
-		case UIO_MEM_PHYS:
799
-			ret = uio_mmap_physical(vma);
800
-			break;
801
-		case UIO_MEM_LOGICAL:
802
-		case UIO_MEM_VIRTUAL:
803
-			ret = uio_mmap_logical(vma);
804
-			break;
805
-		default:
806
-			ret = -EINVAL;
799
+	case UIO_MEM_IOVA:
800
+	case UIO_MEM_PHYS:
801
+		ret = uio_mmap_physical(vma);
802
+		break;
803
+	case UIO_MEM_LOGICAL:
804
+	case UIO_MEM_VIRTUAL:
805
+		ret = uio_mmap_logical(vma);
806
+		break;
807
+	default:
808
+		ret = -EINVAL;
807
809
 	}
808
810
 
809
-out:
811
+ out:
810
812
 	mutex_unlock(&idev->info_lock);
811
813
 	return ret;
812
814
 }
..
..
@@ -994,6 +996,44 @@
994
996
 }
995
997
 EXPORT_SYMBOL_GPL(__uio_register_device);
996
998
 
999
+static void devm_uio_unregister_device(struct device *dev, void *res)
1000
+{
1001
+	uio_unregister_device(*(struct uio_info **)res);
1002
+}
1003
+
1004
+/**
1005
+ * devm_uio_register_device - Resource managed uio_register_device()
1006
+ * @owner:	module that creates the new device
1007
+ * @parent:	parent device
1008
+ * @info:	UIO device capabilities
1009
+ *
1010
+ * returns zero on success or a negative error code.
1011
+ */
1012
+int __devm_uio_register_device(struct module *owner,
1013
+			       struct device *parent,
1014
+			       struct uio_info *info)
1015
+{
1016
+	struct uio_info **ptr;
1017
+	int ret;
1018
+
1019
+	ptr = devres_alloc(devm_uio_unregister_device, sizeof(*ptr),
1020
+			   GFP_KERNEL);
1021
+	if (!ptr)
1022
+		return -ENOMEM;
1023
+
1024
+	*ptr = info;
1025
+	ret = __uio_register_device(owner, parent, info);
1026
+	if (ret) {
1027
+		devres_free(ptr);
1028
+		return ret;
1029
+	}
1030
+
1031
+	devres_add(parent, ptr);
1032
+
1033
+	return 0;
1034
+}
1035
+EXPORT_SYMBOL_GPL(__devm_uio_register_device);
1036
+
997
1037
 /**
998
1038
  * uio_unregister_device - unregister a industrial IO device
999
1039
  * @info:	UIO device capabilities
..
..
@@ -1019,6 +1059,9 @@
1019
1059
 	idev->info = NULL;
1020
1060
 	mutex_unlock(&idev->info_lock);
1021
1061
 
1062
+	wake_up_interruptible(&idev->wait);
1063
+	kill_fasync(&idev->async_queue, SIGIO, POLL_HUP);
1064
+
1022
1065
 	device_unregister(&idev->dev);
1023
1066
 
1024
1067
 	uio_free_minor(minor);