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| author | Corey Minyard <cminyard@mvista.com> | 2018-06-21 23:32:48 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-20 20:46:56 +0300 |
| commit | ea944c71360f2af281c260f165507a60a691452a (patch) | |
| tree | f8ef85b3d4391018b51c88d5b7093c34f7e941aa /drivers/char/ipmi | |
| parent | 438bf726def0f5bdc418b1c4ac038355a55f306a (diff) | |
| download | linux-ea944c71360f2af281c260f165507a60a691452a.tar.xz | |
ipmi:dmi: Ignore IPMI SMBIOS entries with a zero base address
[ Upstream commit 1574608f5f4204440d6d9f52b971aba967664764 ]
Looking at logs from systems all over the place, it looks like tons
of broken systems exist that set the base address to zero. I can
only guess that is some sort of non-standard idea to mark the
interface as not being present. It can't be zero, anyway, so just
complain and ignore it.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/char/ipmi')
| -rw-r--r-- | drivers/char/ipmi/ipmi_dmi.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/char/ipmi/ipmi_dmi.c b/drivers/char/ipmi/ipmi_dmi.c index e2c143861b1e..28dbd5529188 100644 --- a/drivers/char/ipmi/ipmi_dmi.c +++ b/drivers/char/ipmi/ipmi_dmi.c @@ -217,6 +217,10 @@ static void __init dmi_decode_ipmi(const struct dmi_header *dm) slave_addr = data[DMI_IPMI_SLAVEADDR]; memcpy(&base_addr, data + DMI_IPMI_ADDR, sizeof(unsigned long)); + if (!base_addr) { + pr_err("Base address is zero, assuming no IPMI interface\n"); + return; + } if (len >= DMI_IPMI_VER2_LENGTH) { if (type == IPMI_DMI_TYPE_SSIF) { offset = 0; |