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[PATCH] edac: pnd2_edac: add code comment for clarification and update variable assignment

From "Gustavo A. R. Silva" <garsilva@embeddedor.com>
Newsgroups linux.kernel
Subject [PATCH] edac: pnd2_edac: add code comment for clarification and update variable assignment
Date 2017-06-23 00:10 +0200
Message-ID <tVisy-27Z-13@gated-at.bofh.it> (permalink)
References <tVi9c-1Mr-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

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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

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[PATCH 1/2] edac: pnd2_edac: add code comment for clarification "Gustavo A. R. Silva" <garsilva@embeddedor.com> - 2017-06-22 21:30 +0200
  [PATCH 2/2] edac: pnd2_edac: remove useless variable assignment "Gustavo A. R. Silva" <garsilva@embeddedor.com> - 2017-06-22 21:40 +0200
    Re: [PATCH 2/2] edac: pnd2_edac: remove useless variable assignment Borislav Petkov <bp@alien8.de> - 2017-06-22 23:10 +0200
      Re: [PATCH 2/2] edac: pnd2_edac: remove useless variable assignment "Gustavo A. R. Silva" <garsilva@embeddedor.com> - 2017-06-22 23:50 +0200
        [PATCH] edac: pnd2_edac: add code comment for clarification and  update variable assignment "Gustavo A. R. Silva" <garsilva@embeddedor.com> - 2017-06-23 00:10 +0200
          Re: [PATCH] edac: pnd2_edac: add code comment for clarification and  update variable assignment Borislav Petkov <bp@alien8.de> - 2017-06-23 10:00 +0200

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