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EDAC, octeon: Fix an uninitialized variable warning

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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 <[email protected]>
Acked-by: David Daney <[email protected]>
Cc: linux-edac <[email protected]>
Cc: [email protected]
Cc: <[email protected]> # 3.15+
Fixes: 1bc021e815 ("EDAC: Octeon: Add error injection support")
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Borislav Petkov <[email protected]>
This commit is contained in:
James Hogan 2017-11-13 16:12:06 +00:00 • committed by Borislav Petkov
commit 544e92581a
1 changed files with 1 additions and 0 deletions
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1
drivers/edac/octeon_edac-lmc.c
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@ -78,6 +78,7 @@ static void octeon_lmc_edac_poll_o2(struct mem_ctl_info *mci)
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)