linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: "Gustavo A. R. Silva" <garsilva@embeddedor.com>
To: Borislav Petkov <bp@alien8.de>, Tony Luck <tony.luck@intel.com>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Cc: linux-edac@vger.kernel.org, linux-kernel@vger.kernel.org,
	"Gustavo A. R. Silva" <garsilva@embeddedor.com>
Subject: [PATCH] edac: pnd2_edac: add code comment for clarification and update variable assignment
Date: Thu, 22 Jun 2017 17:05:35 -0500	[thread overview]
Message-ID: <20170622220535.GA4896@embeddedgus> (raw)
In-Reply-To: <20170622164345.Horde.SwUuX9eHAPqyFo5pq1RUp09@gator4166.hostgator.com>

Add code comment to make it clear that the fall-through is intentional and,
OR ret with its previous value to avoid overwriting it.

Cc: Borislav Petkov <bp@alien8.de>
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
---
 drivers/edac/pnd2_edac.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/edac/pnd2_edac.c b/drivers/edac/pnd2_edac.c
index 1cad5a9..63cb323 100644
--- a/drivers/edac/pnd2_edac.c
+++ b/drivers/edac/pnd2_edac.c
@@ -174,8 +174,9 @@ static int apl_rd_reg(int port, int off, int op, void *data, size_t sz, char *na
 	switch (sz) {
 	case 8:
 		ret = sbi_send(port, off + 4, op, (u32 *)(data + 4));
+		/* fall through */
 	case 4:
-		ret = sbi_send(port, off, op, (u32 *)data);
+		ret |= sbi_send(port, off, op, (u32 *)data);
 		pnd2_printk(KERN_DEBUG, "%s=%x%08x ret=%d\n", name,
 					sz == 8 ? *((u32 *)(data + 4)) : 0, *((u32 *)data), ret);
 		break;
-- 
2.5.0

  reply	other threads:[~2017-06-22 22:05 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-06-22 19:26 [PATCH 1/2] edac: pnd2_edac: add code comment for clarification Gustavo A. R. Silva
2017-06-22 19:30 ` [PATCH 2/2] edac: pnd2_edac: remove useless variable assignment Gustavo A. R. Silva
2017-06-22 21:07   ` Borislav Petkov
2017-06-22 21:43     ` Gustavo A. R. Silva
2017-06-22 22:05       ` Gustavo A. R. Silva [this message]
2017-06-23  7:53         ` [PATCH] edac: pnd2_edac: add code comment for clarification and update " Borislav Petkov

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20170622220535.GA4896@embeddedgus \
    --to=garsilva@embeddedor.com \
    --cc=bp@alien8.de \
    --cc=linux-edac@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mchehab@kernel.org \
    --cc=qiuxu.zhuo@intel.com \
    --cc=tony.luck@intel.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).