Patch "EDAC, octeon: Fix an uninitialized variable warning" has been added to the 4.4-stable tree

* Patch "EDAC, octeon: Fix an uninitialized variable warning" has been added to the 4.4-stable tree
@ 2018-02-15  8:35 ` gregkh
  0 siblings, 0 replies; 2+ messages in thread
From: Greg Kroah-Hartman @ 2018-02-15  8:35 UTC (permalink / raw)
  To: jhogan, bp, david.daney, gregkh, linux-edac; +Cc: stable, stable-commits

This is a note to let you know that I've just added the patch titled

    EDAC, octeon: Fix an uninitialized variable warning

to the 4.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     edac-octeon-fix-an-uninitialized-variable-warning.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


From 544e92581a2ac44607d7cc602c6b54d18656f56d Mon Sep 17 00:00:00 2001
From: James Hogan <jhogan@kernel.org>
Date: Mon, 13 Nov 2017 16:12:06 +0000
Subject: EDAC, octeon: Fix an uninitialized variable warning
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From: James Hogan <jhogan@kernel.org>

commit 544e92581a2ac44607d7cc602c6b54d18656f56d upstream.

Fix an uninitialized variable warning in the Octeon EDAC driver, as seen
in MIPS cavium_octeon_defconfig builds since v4.14 with Codescape GNU
Tools 2016.05-03:

  drivers/edac/octeon_edac-lmc.c In function ‘octeon_lmc_edac_poll_o2’:
  drivers/edac/octeon_edac-lmc.c:87:24: warning: ‘((long unsigned int*)&int_reg)[1]’ may \
    be used uninitialized in this function [-Wmaybe-uninitialized]
    if (int_reg.s.sec_err || int_reg.s.ded_err) {
                        ^
Iinitialise the whole int_reg variable to zero before the conditional
assignments in the error injection case.

Signed-off-by: James Hogan <jhogan@kernel.org>
Acked-by: David Daney <david.daney@cavium.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: linux-mips@linux-mips.org
Fixes: 1bc021e81565 ("EDAC: Octeon: Add error injection support")
Link: http://lkml.kernel.org/r/20171113161206.20990-1-james.hogan@mips.com
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/edac/octeon_edac-lmc.c |    1 +
 1 file changed, 1 insertion(+)



Patches currently in stable-queue which might be from jhogan@kernel.org are

queue-4.4/edac-octeon-fix-an-uninitialized-variable-warning.patch
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--- a/drivers/edac/octeon_edac-lmc.c
+++ b/drivers/edac/octeon_edac-lmc.c
@@ -79,6 +79,7 @@ static void octeon_lmc_edac_poll_o2(stru
 	if (!pvt->inject)
 		int_reg.u64 = cvmx_read_csr(CVMX_LMCX_INT(mci->mc_idx));
 	else {
+		int_reg.u64 = 0;
 		if (pvt->error_type == 1)
 			int_reg.s.sec_err = 1;
 		if (pvt->error_type == 2)

^ permalink raw reply	[flat|nested] 2+ messages in thread