Staging: Comedi: Lindent changes to comdi driver in staging tree

Lindent changes to comdi driver in staging tree.
This patch is followed by the checkpatch.pl error fixes.
Did not make them part of this patch as the patch size is already huge.

Signed-off-by: Mithlesh Thukral <mithlesh@linsyssoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 100 insertions, 79 deletions

diff --git a/drivers/staging/comedi/drivers.c b/drivers/staging/comedi/drivers.c
index 42a02571ff1b..5157c89ec4ee 100644
--- a/drivers/staging/comedi/drivers.c
+++ b/drivers/staging/comedi/drivers.c
@@ -48,13 +48,14 @@
 #include <asm/system.h>
 
 static int postconfig(struct comedi_device *dev);
-static int insn_rw_emulate_bits(struct comedi_device *dev, struct comedi_subdevice *s,
-	struct comedi_insn *insn, unsigned int *data);
-static void *comedi_recognize(struct comedi_driver * driv, const char *name);
+static int insn_rw_emulate_bits(struct comedi_device *dev,
+				struct comedi_subdevice *s,
+				struct comedi_insn *insn, unsigned int *data);
+static void *comedi_recognize(struct comedi_driver *driv, const char *name);
 static void comedi_report_boards(struct comedi_driver *driv);
 static int poll_invalid(struct comedi_device *dev, struct comedi_subdevice *s);
 int comedi_buf_alloc(struct comedi_device *dev, struct comedi_subdevice *s,
-	unsigned long new_size);
+		     unsigned long new_size);
 
 struct comedi_driver *comedi_drivers;
 
@@ -123,7 +124,8 @@ int comedi_device_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	for (driv = comedi_drivers; driv; driv = driv->next) {
 		if (!try_module_get(driv->module)) {
-			printk("comedi: failed to increment module count, skipping\n");
+			printk
+			    ("comedi: failed to increment module count, skipping\n");
 			continue;
 		}
 		if (driv->num_names) {
@@ -195,16 +197,20 @@ int comedi_driver_unregister(struct comedi_driver *driver)
 
 	/* check for devices using this driver */
 	for (i = 0; i < COMEDI_NUM_BOARD_MINORS; i++) {
-		struct comedi_device_file_info *dev_file_info = comedi_get_device_file_info(i);
+		struct comedi_device_file_info *dev_file_info =
+		    comedi_get_device_file_info(i);
 		struct comedi_device *dev;
 
-		if (dev_file_info == NULL) continue;
+		if (dev_file_info == NULL)
+			continue;
 		dev = dev_file_info->device;
 
 		mutex_lock(&dev->mutex);
 		if (dev->attached && dev->driver == driver) {
 			if (dev->use_count)
-				printk("BUG! detaching device with use_count=%d\n", dev->use_count);
+				printk
+				    ("BUG! detaching device with use_count=%d\n",
+				     dev->use_count);
 			comedi_device_detach(dev);
 		}
 		mutex_unlock(&dev->mutex);
@@ -242,10 +248,11 @@ static int postconfig(struct comedi_device *dev)
 
 		if (s->do_cmd) {
 			BUG_ON((s->subdev_flags & (SDF_CMD_READ |
-				SDF_CMD_WRITE)) == 0);
+						   SDF_CMD_WRITE)) == 0);
 			BUG_ON(!s->do_cmdtest);
 
-			async = kzalloc(sizeof(struct comedi_async), GFP_KERNEL);
+			async =
+			    kzalloc(sizeof(struct comedi_async), GFP_KERNEL);
 			if (async == NULL) {
 				printk("failed to allocate async struct\n");
 				return -ENOMEM;
@@ -298,7 +305,7 @@ static int postconfig(struct comedi_device *dev)
 }
 
 /*  generic recognize function for drivers that register their supported board names */
-void *comedi_recognize(struct comedi_driver * driv, const char *name)
+void *comedi_recognize(struct comedi_driver *driv, const char *name)
 {
 	unsigned i;
 	const char *const *name_ptr = driv->board_name;
@@ -306,8 +313,8 @@ void *comedi_recognize(struct comedi_driver * driv, const char *name)
 		if (strcmp(*name_ptr, name) == 0)
 			return (void *)name_ptr;
 		name_ptr =
-			(const char *const *)((const char *)name_ptr +
-			driv->offset);
+		    (const char *const *)((const char *)name_ptr +
+					  driv->offset);
 	}
 
 	return NULL;
@@ -319,7 +326,7 @@ void comedi_report_boards(struct comedi_driver *driv)
 	const char *const *name_ptr;
 
 	printk("comedi: valid board names for %s driver are:\n",
-		driv->driver_name);
+	       driv->driver_name);
 
 	name_ptr = driv->board_name;
 	for (i = 0; i < driv->num_names; i++) {
@@ -337,13 +344,14 @@ static int poll_invalid(struct comedi_device *dev, struct comedi_subdevice *s)
 }
 
 int insn_inval(struct comedi_device *dev, struct comedi_subdevice *s,
-	struct comedi_insn *insn, unsigned int *data)
+	       struct comedi_insn *insn, unsigned int *data)
 {
 	return -EINVAL;
 }
 
-static int insn_rw_emulate_bits(struct comedi_device *dev, struct comedi_subdevice *s,
-	struct comedi_insn *insn, unsigned int *data)
+static int insn_rw_emulate_bits(struct comedi_device *dev,
+				struct comedi_subdevice *s,
+				struct comedi_insn *insn, unsigned int *data)
 {
 	struct comedi_insn new_insn;
 	int ret;
@@ -351,7 +359,7 @@ static int insn_rw_emulate_bits(struct comedi_device *dev, struct comedi_subdevi
 
 	unsigned chan = CR_CHAN(insn->chanspec);
 	const unsigned base_bitfield_channel =
-		(chan < channels_per_bitfield) ? 0 : chan;
+	    (chan < channels_per_bitfield) ? 0 : chan;
 	unsigned int new_data[2];
 	memset(new_data, 0, sizeof(new_data));
 	memset(&new_insn, 0, sizeof(new_insn));
@@ -379,7 +387,7 @@ static int insn_rw_emulate_bits(struct comedi_device *dev, struct comedi_subdevi
 	return 1;
 }
 
-static inline unsigned long uvirt_to_kva(pgd_t *pgd, unsigned long adr)
+static inline unsigned long uvirt_to_kva(pgd_t * pgd, unsigned long adr)
 {
 	unsigned long ret = 0UL;
 	pmd_t *pmd;
@@ -394,7 +402,7 @@ static inline unsigned long uvirt_to_kva(pgd_t *pgd, unsigned long adr)
 			pte = *ptep;
 			if (pte_present(pte)) {
 				ret = (unsigned long)
-					page_address(pte_page(pte));
+				    page_address(pte_page(pte));
 				ret |= (adr & (PAGE_SIZE - 1));
 			}
 		}
@@ -413,7 +421,7 @@ static inline unsigned long kvirt_to_kva(unsigned long adr)
 }
 
 int comedi_buf_alloc(struct comedi_device *dev, struct comedi_subdevice *s,
-	unsigned long new_size)
+		     unsigned long new_size)
 {
 	struct comedi_async *async = s->async;
 
@@ -434,18 +442,22 @@ int comedi_buf_alloc(struct comedi_device *dev, struct comedi_subdevice *s,
 		unsigned i;
 		for (i = 0; i < async->n_buf_pages; ++i) {
 			if (async->buf_page_list[i].virt_addr) {
-				mem_map_unreserve(virt_to_page(async->
-						buf_page_list[i].virt_addr));
+				mem_map_unreserve(virt_to_page
+						  (async->buf_page_list[i].
+						   virt_addr));
 				if (s->async_dma_dir != DMA_NONE) {
 					dma_free_coherent(dev->hw_dev,
-						PAGE_SIZE,
-						async->buf_page_list[i].
-						virt_addr,
-						async->buf_page_list[i].
-						dma_addr);
+							  PAGE_SIZE,
+							  async->
+							  buf_page_list
+							  [i].virt_addr,
+							  async->
+							  buf_page_list
+							  [i].dma_addr);
 				} else {
-					free_page((unsigned long)async->
-						buf_page_list[i].virt_addr);
+					free_page((unsigned long)
+						  async->buf_page_list[i].
+						  virt_addr);
 				}
 			}
 		}
@@ -460,40 +472,42 @@ int comedi_buf_alloc(struct comedi_device *dev, struct comedi_subdevice *s,
 		struct page **pages = NULL;
 
 		async->buf_page_list =
-			vmalloc(sizeof(struct comedi_buf_page) * n_pages);
+		    vmalloc(sizeof(struct comedi_buf_page) * n_pages);
 		if (async->buf_page_list) {
 			memset(async->buf_page_list, 0,
-				sizeof(struct comedi_buf_page) * n_pages);
+			       sizeof(struct comedi_buf_page) * n_pages);
 			pages = vmalloc(sizeof(struct page *) * n_pages);
 		}
 		if (pages) {
 			for (i = 0; i < n_pages; i++) {
 				if (s->async_dma_dir != DMA_NONE) {
 					async->buf_page_list[i].virt_addr =
-						dma_alloc_coherent(dev->hw_dev,
-						PAGE_SIZE,
-						&async->buf_page_list[i].
-						dma_addr,
-						GFP_KERNEL | __GFP_COMP);
+					    dma_alloc_coherent(dev->hw_dev,
+							       PAGE_SIZE,
+							       &async->
+							       buf_page_list
+							       [i].dma_addr,
+							       GFP_KERNEL |
+							       __GFP_COMP);
 				} else {
 					async->buf_page_list[i].virt_addr =
-						(void *)
-						get_zeroed_page(GFP_KERNEL);
+					    (void *)
+					    get_zeroed_page(GFP_KERNEL);
 				}
 				if (async->buf_page_list[i].virt_addr == NULL) {
 					break;
 				}
-				mem_map_reserve(virt_to_page(async->
-						buf_page_list[i].virt_addr));
+				mem_map_reserve(virt_to_page
+						(async->buf_page_list[i].
+						 virt_addr));
 				pages[i] =
-					virt_to_page(async->buf_page_list[i].
-					virt_addr);
+				    virt_to_page(async->
+						 buf_page_list[i].virt_addr);
 			}
 		}
 		if (i == n_pages) {
 			async->prealloc_buf =
-				vmap(pages, n_pages, VM_MAP,
-				PAGE_KERNEL_NOCACHE);
+			    vmap(pages, n_pages, VM_MAP, PAGE_KERNEL_NOCACHE);
 		}
 		if (pages) {
 			vfree(pages);
@@ -503,23 +517,25 @@ int comedi_buf_alloc(struct comedi_device *dev, struct comedi_subdevice *s,
 			if (async->buf_page_list) {
 				for (i = 0; i < n_pages; i++) {
 					if (async->buf_page_list[i].virt_addr ==
-						NULL) {
+					    NULL) {
 						break;
 					}
-					mem_map_unreserve(virt_to_page(async->
-							buf_page_list[i].
-							virt_addr));
+					mem_map_unreserve(virt_to_page
+							  (async->buf_page_list
+							   [i].virt_addr));
 					if (s->async_dma_dir != DMA_NONE) {
 						dma_free_coherent(dev->hw_dev,
-							PAGE_SIZE,
-							async->buf_page_list[i].
-							virt_addr,
-							async->buf_page_list[i].
-							dma_addr);
+								  PAGE_SIZE,
+								  async->
+								  buf_page_list
+								  [i].virt_addr,
+								  async->
+								  buf_page_list
+								  [i].dma_addr);
 					} else {
-						free_page((unsigned long)async->
-							buf_page_list[i].
-							virt_addr);
+						free_page((unsigned long)
+							  async->buf_page_list
+							  [i].virt_addr);
 					}
 				}
 				vfree(async->buf_page_list);
@@ -536,7 +552,8 @@ int comedi_buf_alloc(struct comedi_device *dev, struct comedi_subdevice *s,
 
 /* munging is applied to data by core as it passes between user
  * and kernel space */
-unsigned int comedi_buf_munge(struct comedi_async *async, unsigned int num_bytes)
+unsigned int comedi_buf_munge(struct comedi_async *async,
+			      unsigned int num_bytes)
 {
 	struct comedi_subdevice *s = async->subdevice;
 	unsigned int count = 0;
@@ -555,15 +572,15 @@ unsigned int comedi_buf_munge(struct comedi_async *async, unsigned int num_bytes
 		block_size = num_bytes - count;
 		if (block_size < 0) {
 			printk("%s: %s: bug! block_size is negative\n",
-				__FILE__, __func__);
+			       __FILE__, __func__);
 			break;
 		}
 		if ((int)(async->munge_ptr + block_size -
-				async->prealloc_bufsz) > 0)
+			  async->prealloc_bufsz) > 0)
 			block_size = async->prealloc_bufsz - async->munge_ptr;
 
 		s->munge(s->device, s, async->prealloc_buf + async->munge_ptr,
-			block_size, async->munge_chan);
+			 block_size, async->munge_chan);
 
 		smp_wmb();	/* barrier insures data is munged in buffer before munge_count is incremented */
 
@@ -598,7 +615,8 @@ unsigned int comedi_buf_write_n_available(struct comedi_async *async)
 }
 
 /* allocates chunk for the writer from free buffer space */
-unsigned int comedi_buf_write_alloc(struct comedi_async *async, unsigned int nbytes)
+unsigned int comedi_buf_write_alloc(struct comedi_async *async,
+				    unsigned int nbytes)
 {
 	unsigned int free_end = async->buf_read_count + async->prealloc_bufsz;
 
@@ -614,7 +632,7 @@ unsigned int comedi_buf_write_alloc(struct comedi_async *async, unsigned int nby
 
 /* allocates nothing unless it can completely fulfill the request */
 unsigned int comedi_buf_write_alloc_strict(struct comedi_async *async,
-	unsigned int nbytes)
+					   unsigned int nbytes)
 {
 	unsigned int free_end = async->buf_read_count + async->prealloc_bufsz;
 
@@ -632,8 +650,9 @@ unsigned int comedi_buf_write_alloc_strict(struct comedi_async *async,
 unsigned comedi_buf_write_free(struct comedi_async *async, unsigned int nbytes)
 {
 	if ((int)(async->buf_write_count + nbytes -
-			async->buf_write_alloc_count) > 0) {
-		printk("comedi: attempted to write-free more bytes than have been write-allocated.\n");
+		  async->buf_write_alloc_count) > 0) {
+		printk
+		    ("comedi: attempted to write-free more bytes than have been write-allocated.\n");
 		nbytes = async->buf_write_alloc_count - async->buf_write_count;
 	}
 	async->buf_write_count += nbytes;
@@ -649,7 +668,7 @@ unsigned comedi_buf_write_free(struct comedi_async *async, unsigned int nbytes)
 unsigned comedi_buf_read_alloc(struct comedi_async *async, unsigned nbytes)
 {
 	if ((int)(async->buf_read_alloc_count + nbytes - async->munge_count) >
-		0) {
+	    0) {
 		nbytes = async->munge_count - async->buf_read_alloc_count;
 	}
 	async->buf_read_alloc_count += nbytes;
@@ -665,8 +684,9 @@ unsigned comedi_buf_read_free(struct comedi_async *async, unsigned int nbytes)
 	/*  barrier insures data has been read out of buffer before read count is incremented */
 	smp_mb();
 	if ((int)(async->buf_read_count + nbytes -
-			async->buf_read_alloc_count) > 0) {
-		printk("comedi: attempted to read-free more bytes than have been read-allocated.\n");
+		  async->buf_read_alloc_count) > 0) {
+		printk
+		    ("comedi: attempted to read-free more bytes than have been read-allocated.\n");
 		nbytes = async->buf_read_alloc_count - async->buf_read_count;
 	}
 	async->buf_read_count += nbytes;
@@ -676,7 +696,7 @@ unsigned comedi_buf_read_free(struct comedi_async *async, unsigned int nbytes)
 }
 
 void comedi_buf_memcpy_to(struct comedi_async *async, unsigned int offset,
-	const void *data, unsigned int num_bytes)
+			  const void *data, unsigned int num_bytes)
 {
 	unsigned int write_ptr = async->buf_write_ptr + offset;
 
@@ -701,7 +721,7 @@ void comedi_buf_memcpy_to(struct comedi_async *async, unsigned int offset,
 }
 
 void comedi_buf_memcpy_from(struct comedi_async *async, unsigned int offset,
-	void *dest, unsigned int nbytes)
+			    void *dest, unsigned int nbytes)
 {
 	void *src;
 	unsigned int read_ptr = async->buf_read_ptr + offset;
@@ -748,7 +768,7 @@ int comedi_buf_get(struct comedi_async *async, short *x)
 	if (n < sizeof(short))
 		return 0;
 	comedi_buf_read_alloc(async, sizeof(short));
-	*x = *(short *) (async->prealloc_buf + async->buf_read_ptr);
+	*x = *(short *)(async->prealloc_buf + async->buf_read_ptr);
 	comedi_buf_read_free(async, sizeof(short));
 	return 1;
 }
@@ -761,7 +781,7 @@ int comedi_buf_put(struct comedi_async *async, short x)
 		async->events |= COMEDI_CB_ERROR;
 		return 0;
 	}
-	*(short *) (async->prealloc_buf + async->buf_write_ptr) = x;
+	*(short *)(async->prealloc_buf + async->buf_write_ptr) = x;
 	comedi_buf_write_free(async, sizeof(short));
 	return 1;
 }
@@ -785,7 +805,8 @@ void comedi_reset_async_buf(struct comedi_async *async)
 	async->events = 0;
 }
 
-int comedi_auto_config(struct device *hardware_device, const char *board_name, const int *options, unsigned num_options)
+int comedi_auto_config(struct device *hardware_device, const char *board_name,
+		       const int *options, unsigned num_options)
 {
 	struct comedi_devconfig it;
 	int minor;
@@ -799,7 +820,8 @@ int comedi_auto_config(struct device *hardware_device, const char *board_name, c
 	}
 
 	minor = comedi_alloc_board_minor(hardware_device);
-	if (minor < 0) return minor;
+	if (minor < 0)
+		return minor;
 
 	private_data = kmalloc(sizeof(unsigned), GFP_KERNEL);
 	if (private_data == NULL) {
@@ -822,8 +844,7 @@ int comedi_auto_config(struct device *hardware_device, const char *board_name, c
 	mutex_unlock(&dev_file_info->device->mutex);
 
 cleanup:
-	if (retval < 0)
-	{
+	if (retval < 0) {
 		kfree(private_data);
 		comedi_free_board_minor(minor);
 	}
@@ -833,7 +854,8 @@ cleanup:
 void comedi_auto_unconfig(struct device *hardware_device)
 {
 	unsigned *minor = (unsigned *)dev_get_drvdata(hardware_device);
-	if (minor == NULL) return;
+	if (minor == NULL)
+		return;
 
 	BUG_ON(*minor >= COMEDI_NUM_BOARD_MINORS);
 
@@ -860,8 +882,7 @@ void comedi_pci_auto_unconfig(struct pci_dev *pcidev)
 	comedi_auto_unconfig(&pcidev->dev);
 }
 
-int comedi_usb_auto_config(struct usb_device *usbdev,
-	const char *board_name)
+int comedi_usb_auto_config(struct usb_device *usbdev, const char *board_name)
 {
 	BUG_ON(usbdev == NULL);
 	return comedi_auto_config(&usbdev->dev, board_name, NULL, 0);