char: mspec: Use kvzalloc() in mspec_mmap()

Use kvzalloc() in mspec_mmap() instead of open-coding it.

Signed-off-by: Denis Efremov <efremov@linux.com>
Link: https://lore.kernel.org/r/20200827213421.50429-1-efremov@linux.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/char/mspec.c b/drivers/char/mspec.c
index 0fae333..f8231e2 100644 (file)
--- a/drivers/char/mspec.c
+++ b/drivers/char/mspec.c
@@ -195,10 +195,7 @@ mspec_mmap(struct file *file, struct vm_area_struct *vma,
 
        pages = vma_pages(vma);
        vdata_size = sizeof(struct vma_data) + pages * sizeof(long);
-       if (vdata_size <= PAGE_SIZE)
-               vdata = kzalloc(vdata_size, GFP_KERNEL);
-       else
-               vdata = vzalloc(vdata_size);
+       vdata = kvzalloc(vdata_size, GFP_KERNEL);
        if (!vdata)
                return -ENOMEM;