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Commit 4eb32b48 authored by Jes Sorensen's avatar Jes Sorensen Committed by Greg Kroah-Hartman
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staging: unisys: Avoid some == 0 checks 



Signed-off-by: default avatarJes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: default avatarBenjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 28723521

drivers/staging/unisys/visorchipset/file.c

+6 −6
Original line number Diff line number Diff line
@@ -36,7 +36,7 @@ static struct visorchannel **file_controlvm_channel; 
void

visorchipset_file_cleanup(dev_t major_dev)

{

	if (file_cdev.ops != NULL)

	if (file_cdev.ops)

		cdev_del(&file_cdev);

	file_cdev.ops = NULL;

	unregister_chrdev_region(major_dev, 1);
@@ -47,7 +47,7 @@ visorchipset_open(struct inode *inode, struct file *file) 
{

	unsigned minor_number = iminor(inode);



	if (minor_number != 0)

	if (minor_number)

		return -ENODEV;

	file->private_data = NULL;

	return 0;
@@ -73,16 +73,16 @@ visorchipset_mmap(struct file *file, struct vm_area_struct *vma) 
	switch (offset) {

	case VISORCHIPSET_MMAP_CONTROLCHANOFFSET:

		vma->vm_flags |= VM_IO;

		if (*file_controlvm_channel == NULL) {

		if (!*file_controlvm_channel)

			return -ENXIO;

		}



		visorchannel_read(*file_controlvm_channel,

			offsetof(struct spar_controlvm_channel_protocol,

				 gp_control_channel),

			&addr, sizeof(addr));

		if (addr == 0) {

		if (!addr)

			return -ENXIO;

		}



		physaddr = (unsigned long)addr;

		if (remap_pfn_range(vma, vma->vm_start,

				    physaddr >> PAGE_SHIFT,