diff mbox series

[1/3] ASoC: codecs: hdac_hdmi: Fix incorrect use of list_for_each_entry

Message ID 20200415162849.308-1-amadeuszx.slawinski@linux.intel.com (mailing list archive)
State Accepted
Commit 326b509238171d37402dbe308e154cc234ed1960
Headers show
Series [1/3] ASoC: codecs: hdac_hdmi: Fix incorrect use of list_for_each_entry | expand

Commit Message

Amadeusz Sławiński April 15, 2020, 4:28 p.m. UTC
If we don't find any pcm, pcm will point at address at an offset from
the the list head and not a meaningful structure. Fix this by returning
correct pcm if found and NULL if not. Found with coccinelle.

Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
---
 sound/soc/codecs/hdac_hdmi.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

Comments

Mark Brown April 15, 2020, 5:25 p.m. UTC | #1
On Wed, Apr 15, 2020 at 12:28:49PM -0400, Amadeusz Sławiński wrote:
> If we don't find any pcm, pcm will point at address at an offset from
> the the list head and not a meaningful structure. Fix this by returning
> correct pcm if found and NULL if not. Found with coccinelle.

I only have patch 1/3 here and no cover letter - what's going on with
dependencies?
Amadeusz Sławiński April 16, 2020, 7:27 a.m. UTC | #2
On 4/15/2020 7:25 PM, Mark Brown wrote:
> On Wed, Apr 15, 2020 at 12:28:49PM -0400, Amadeusz Sławiński wrote:
>> If we don't find any pcm, pcm will point at address at an offset from
>> the the list head and not a meaningful structure. Fix this by returning
>> correct pcm if found and NULL if not. Found with coccinelle.
> 
> I only have patch 1/3 here and no cover letter - what's going on with
> dependencies?
> 

Oops, I'm sorry about this. There is only this patch, do you want me to 
resend?
Mark Brown April 16, 2020, 11:06 a.m. UTC | #3
On Thu, Apr 16, 2020 at 09:27:29AM +0200, Amadeusz Sławiński wrote:

> Oops, I'm sorry about this. There is only this patch, do you want me to
> resend?

No, it's OK.
diff mbox series

Patch

diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c
index fba9b749839d..f26b77faed59 100644
--- a/sound/soc/codecs/hdac_hdmi.c
+++ b/sound/soc/codecs/hdac_hdmi.c
@@ -142,14 +142,14 @@  static struct hdac_hdmi_pcm *
 hdac_hdmi_get_pcm_from_cvt(struct hdac_hdmi_priv *hdmi,
 			   struct hdac_hdmi_cvt *cvt)
 {
-	struct hdac_hdmi_pcm *pcm = NULL;
+	struct hdac_hdmi_pcm *pcm;
 
 	list_for_each_entry(pcm, &hdmi->pcm_list, head) {
 		if (pcm->cvt == cvt)
-			break;
+			return pcm;
 	}
 
-	return pcm;
+	return NULL;
 }
 
 static void hdac_hdmi_jack_report(struct hdac_hdmi_pcm *pcm,