From: Jes Sorensen <Jes.Sorensen@xxxxxxxxxx>
Signed-off-by: Jes Sorensen <Jes.Sorensen@xxxxxxxxxx>
Signed-off-by: Benjamin Romer <benjamin.romer@xxxxxxxxxx>
---
drivers/staging/unisys/visorchipset/file.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/staging/unisys/visorchipset/file.c b/drivers/staging/unisys/visorchipset/file.c
index e63ef2a..a17027c 100644
--- a/drivers/staging/unisys/visorchipset/file.c
+++ b/drivers/staging/unisys/visorchipset/file.c
@@ -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,
--
2.1.4
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