iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

staging: unisys: Avoid some == 0 checks

Browse Source 
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jes Sorensen 2015-05-05 18:35:56 -04:00 committed by Greg Kroah-Hartman
parent 28723521a7
commit 4eb32b4892
1 changed files with 6 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/staging/unisys/visorchipset/file.c
View File

@ -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,