[PATCH linux-next] drm/amdkfd: remove redundant variables err and ret

[cgel . zte]

From: Jinpeng Cui <cui.jinpe...@zte.com.cn>

Return value from kfd_wait_on_events() and io_remap_pfn_range() directly
instead of taking this in another redundant variable.

Reported-by: Zeal Robot <zea...@zte.com.cn>
Signed-off-by: Jinpeng Cui <cui.jinpe...@zte.com.cn>
---
 drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c 
b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
index 664e8b5d82c0..84da1a9ce37c 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
@@ -876,14 +876,11 @@ static int kfd_ioctl_wait_events(struct file *filp, 
struct kfd_process *p,
                                void *data)
 {
        struct kfd_ioctl_wait_events_args *args = data;
-       int err;
 
-       err = kfd_wait_on_events(p, args->num_events,
+       return kfd_wait_on_events(p, args->num_events,
                        (void __user *)args->events_ptr,
                        (args->wait_for_all != 0),
                        &args->timeout, &args->wait_result);
-
-       return err;
 }
 static int kfd_ioctl_set_scratch_backing_va(struct file *filep,
                                        struct kfd_process *p, void *data)
@@ -2860,7 +2857,6 @@ static int kfd_mmio_mmap(struct kfd_dev *dev, struct 
kfd_process *process,
                      struct vm_area_struct *vma)
 {
        phys_addr_t address;
-       int ret;
 
        if (vma->vm_end - vma->vm_start != PAGE_SIZE)
                return -EINVAL;
@@ -2880,12 +2876,11 @@ static int kfd_mmio_mmap(struct kfd_dev *dev, struct 
kfd_process *process,
                 process->pasid, (unsigned long long) vma->vm_start,
                 address, vma->vm_flags, PAGE_SIZE);
 
-       ret = io_remap_pfn_range(vma,
+       return io_remap_pfn_range(vma,
                                vma->vm_start,
                                address >> PAGE_SHIFT,
                                PAGE_SIZE,
                                vma->vm_page_prot);
-       return ret;
 }
 
 
-- 
2.25.1