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    Subject[PATCH 14/28] mm: don't return the number of pages from map_kernel_range{,_noflush}
    Date
    None of the callers needs the number of pages, and a 0 / -errno return
    value is a lot more intuitive.

    Signed-off-by: Christoph Hellwig <hch@lst.de>
    ---
    mm/vmalloc.c | 4 ++--
    1 file changed, 2 insertions(+), 2 deletions(-)

    diff --git a/mm/vmalloc.c b/mm/vmalloc.c
    index a3d810def567..ca8dc5d42580 100644
    --- a/mm/vmalloc.c
    +++ b/mm/vmalloc.c
    @@ -249,7 +249,7 @@ static int vmap_p4d_range(pgd_t *pgd, unsigned long addr,
    * function.
    *
    * RETURNS:
    - * The number of pages mapped on success, -errno on failure.
    + * 0 on success, -errno on failure.
    */
    int map_kernel_range_noflush(unsigned long addr, unsigned long size,
    pgprot_t prot, struct page **pages)
    @@ -269,7 +269,7 @@ int map_kernel_range_noflush(unsigned long addr, unsigned long size,
    return err;
    } while (pgd++, addr = next, addr != end);

    - return nr;
    + return 0;
    }

    static int map_kernel_range(unsigned long start, unsigned long size,
    --
    2.25.1
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