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ACPI: CPPC: Add NULL pointer check to cppc_get_perf()
authorRafael J. Wysocki <rafael.j.wysocki@intel.com>
Thu, 18 Nov 2021 13:37:38 +0000 (14:37 +0100)
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>
Wed, 24 Nov 2021 12:40:47 +0000 (13:40 +0100)
commitcf3db0a3ce0a6f95eebf2e4677cdba73fb5d5324
tree29c7df663045829ef486224688d891d61ae84dcdtree | snapshot
parentbdf2074c36ff2ec1e88ae41beb6e104f4e7f0cffcommit | diff
ACPI: CPPC: Add NULL pointer check to cppc_get_perf()

Check cpc_desc against NULL in cppc_get_perf(), so it doesn't crash
down the road if cpc_desc is NULL.

Fixes: 698a3bb9d8e0 ("ACPI: CPPC: Introduce cppc_get_nominal_perf()")
Reported-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: 5.15+ <stable@vger.kernel.org> # 5.15+
Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
drivers/acpi/cppc_acpi.c diff | blob | history
Linux Kernel Source Tree.