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| author | Mario Limonciello | 2017-11-01 20:25:29 +0100 |
|---|---|---|
| committer | Darren Hart (VMware) | 2017-11-04 00:33:58 +0100 |
| commit | 980f481d63f57bb62ac171a66294de3e14d52b77 (patch) | |
| tree | 4fdb3d568a714c02f04219a00c8c89099290543b /drivers/platform | |
| parent | platform/x86: wmi: Don't allow drivers to get each other's GUIDs (diff) | |
| download | kernel-qcow2-linux-980f481d63f57bb62ac171a66294de3e14d52b77.tar.gz kernel-qcow2-linux-980f481d63f57bb62ac171a66294de3e14d52b77.tar.xz kernel-qcow2-linux-980f481d63f57bb62ac171a66294de3e14d52b77.zip | |
platform/x86: dell-smbios: only run if proper oem string is detected
The proper way to indicate that a system is a 'supported' Dell System
is by the presence of this string in OEM strings.
Allowing the driver to load on non-Dell systems will have undefined
results.
Signed-off-by: Mario Limonciello <mario.limonciello@dell.com>
Reviewed-by: Edward O'Callaghan <quasisec@google.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
Diffstat (limited to 'drivers/platform')
| -rw-r--r-- | drivers/platform/x86/dell-smbios.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/platform/x86/dell-smbios.c b/drivers/platform/x86/dell-smbios.c index ffc174638aa4..12a3eb153911 100644 --- a/drivers/platform/x86/dell-smbios.c +++ b/drivers/platform/x86/dell-smbios.c @@ -172,8 +172,15 @@ static void __init find_tokens(const struct dmi_header *dm, void *dummy) static int __init dell_smbios_init(void) { + const struct dmi_device *valid; int ret; + valid = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, "Dell System", NULL); + if (!valid) { + pr_err("Unable to run on non-Dell system\n"); + return -ENODEV; + } + dmi_walk(find_tokens, NULL); if (!da_tokens) { |