linux-kernel - [PATCH v2] media: v4l2-core: videobuf-dma-sg: Change return type to vm_fault

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Message-ID: <20180418181919.GA25052@jordon-HP-15-Notebook-PC>
Date:   Wed, 18 Apr 2018 23:49:19 +0530
From:   Souptick Joarder <jrdr.linux@...il.com>
To:     sakari.ailus@....fi, mchehab@...nel.org, jack@...e.cz,
        dan.j.williams@...el.com, akpm@...ux-foundation.org
Cc:     linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        willy@...radead.org
Subject: [PATCH v2] media: v4l2-core: videobuf-dma-sg: Change return type to
 vm_fault_t

Use new return type vm_fault_t for fault handler. For
now, this is just documenting that the function returns
a VM_FAULT value rather than an errno. Once all instances
are converted, vm_fault_t will become a distinct type.

Reference id -> 1c8f422059ae ("mm: change return type to
vm_fault_t")

Signed-off-by: Souptick Joarder <jrdr.linux@...il.com>
Acked-by: Sakari Ailus <sakari.ailus@...ux.intel.com>
---
v2: Updated patch subject

 drivers/media/v4l2-core/videobuf-dma-sg.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/v4l2-core/videobuf-dma-sg.c b/drivers/media/v4l2-core/videobuf-dma-sg.c
index f412429..54257ea 100644
--- a/drivers/media/v4l2-core/videobuf-dma-sg.c
+++ b/drivers/media/v4l2-core/videobuf-dma-sg.c
@@ -435,7 +435,7 @@ static void videobuf_vm_close(struct vm_area_struct *vma)
  * now ...).  Bounce buffers don't work very well for the data rates
  * video capture has.
  */
-static int videobuf_vm_fault(struct vm_fault *vmf)
+static vm_fault_t videobuf_vm_fault(struct vm_fault *vmf)
 {
 	struct vm_area_struct *vma = vmf->vma;
 	struct page *page;
--
1.9.1