diff options
| author | Junxiao Chang <junxiao.chang@intel.com> | 2019-04-08 17:40:22 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-06-15 11:54:57 +0200 |
| commit | 912d34161326c7461250d36917663417bf8601dc (patch) | |
| tree | 7339603f0bb03687b47cf0902daa4bcf0cd1381b /drivers/platform | |
| parent | 5f0c39bf7a7e8dacbe2af22014768a05b7e3ae68 (diff) | |
platform/x86: intel_pmc_ipc: adding error handling
[ Upstream commit e61985d0550df8c2078310202aaad9b41049c36c ]
If punit or telemetry device initialization fails, pmc driver should
unregister and return failure.
This change is to fix a kernel panic when removing kernel module
intel_pmc_ipc.
Fixes: 48c1917088ba ("platform:x86: Add Intel telemetry platform device")
Signed-off-by: Junxiao Chang <junxiao.chang@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/platform')
| -rw-r--r-- | drivers/platform/x86/intel_pmc_ipc.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/platform/x86/intel_pmc_ipc.c b/drivers/platform/x86/intel_pmc_ipc.c index e03fa31446ca..c9b3ef333743 100644 --- a/drivers/platform/x86/intel_pmc_ipc.c +++ b/drivers/platform/x86/intel_pmc_ipc.c @@ -747,13 +747,17 @@ static int ipc_create_pmc_devices(void) if (ret) { dev_err(ipcdev.dev, "Failed to add punit platform device\n"); platform_device_unregister(ipcdev.tco_dev); + return ret; } if (!ipcdev.telem_res_inval) { ret = ipc_create_telemetry_device(); - if (ret) + if (ret) { dev_warn(ipcdev.dev, "Failed to add telemetry platform device\n"); + platform_device_unregister(ipcdev.punit_dev); + platform_device_unregister(ipcdev.tco_dev); + } } return ret; |