linux-kernel - [PATCH] sound: core: Change return type to vm_fault

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Message-ID: <20180425042029.GA21407@jordon-HP-15-Notebook-PC>
Date:   Wed, 25 Apr 2018 09:50:29 +0530
From:   Souptick Joarder <jrdr.linux@...il.com>
To:     perex@...ex.cz, tiwai@...e.com, o-takashi@...amocchi.jp
Cc:     alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: [PATCH] sound: core: 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.

Commit 1c8f422059ae ("mm: change return type to vm_fault_t")

Signed-off-by: Souptick Joarder <jrdr.linux@...il.com>
Reviewed-by: Matthew Wilcox <mawilcox@...rosoft.com>
---
 sound/core/pcm_native.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index 77ba50d..2d331f4 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -3229,7 +3229,7 @@ static __poll_t snd_pcm_capture_poll(struct file *file, poll_table * wait)
 /*
  * mmap status record
  */
-static int snd_pcm_mmap_status_fault(struct vm_fault *vmf)
+static vm_fault_t snd_pcm_mmap_status_fault(struct vm_fault *vmf)
 {
 	struct snd_pcm_substream *substream = vmf->vma->vm_private_data;
 	struct snd_pcm_runtime *runtime;
@@ -3265,7 +3265,7 @@ static int snd_pcm_mmap_status(struct snd_pcm_substream *substream, struct file
 /*
  * mmap control record
  */
-static int snd_pcm_mmap_control_fault(struct vm_fault *vmf)
+static vm_fault_t snd_pcm_mmap_control_fault(struct vm_fault *vmf)
 {
 	struct snd_pcm_substream *substream = vmf->vma->vm_private_data;
 	struct snd_pcm_runtime *runtime;
@@ -3354,7 +3354,7 @@ static int snd_pcm_mmap_control(struct snd_pcm_substream *substream, struct file
 /*
  * fault callback for mmapping a RAM page
  */
-static int snd_pcm_mmap_data_fault(struct vm_fault *vmf)
+static vm_fault_t snd_pcm_mmap_data_fault(struct vm_fault *vmf)
 {
 	struct snd_pcm_substream *substream = vmf->vma->vm_private_data;
 	struct snd_pcm_runtime *runtime;
--
1.9.1