xen/grant-table: Fix incorrect gnttab_dma_free_pages() pr_debug message

[ Upstream commit d9cccfa7c4d1d9ef967ec9308df7304a18609b30 ]

If a call to xenmem_reservation_increase() in gnttab_dma_free_pages()
fails it triggers a message "Failed to decrease reservation..." which
should be "Failed to increase reservation..."

Fixes: 9bdc7304f536 ('xen/grant-table: Allow allocating buffers suitable for DMA')
Reported-by: Ross Philipson <ross.philipson@oracle.com>
Signed-off-by: Liam Merwick <liam.merwick@oracle.com>
Reviewed-by: Mark Kanda <mark.kanda@oracle.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c
index 84575ba..97341fa 100644 (file)
--- a/drivers/xen/grant-table.c
+++ b/drivers/xen/grant-table.c
@@ -914,7 +914,7 @@ int gnttab_dma_free_pages(struct gnttab_dma_alloc_args *args)
 
        ret = xenmem_reservation_increase(args->nr_pages, args->frames);
        if (ret != args->nr_pages) {
-               pr_debug("Failed to decrease reservation for DMA buffer\n");
+               pr_debug("Failed to increase reservation for DMA buffer\n");
                ret = -EFAULT;
        } else {
                ret = 0;