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authorThomas Gleixner <tglx@linutronix.de>2020-08-26 01:36:07 +0200
committerThomas Gleixner <tglx@linutronix.de>2020-08-26 01:36:07 +0200
commitceb2465c51195967f11f6507538579816ac67cb8 (patch)
treeeab534b1062608e36a7b54ccc7be693625f235b8 /arch/x86/kernel/process_64.c
parentf107cee94ba4d2c7357fde59a1d84346c73d4958 (diff)
parent821fc9e261f3af235752f46e59084467cfd440c4 (diff)
Merge tag 'irqchip-fixes-5.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgentirq-urgent-2020-08-30
Pull irqchip fixes from Marc Zyngier: - Revert the wholesale conversion to platform drivers of the pdc, sysirq and cirq drivers, as it breaks a number of platforms even when the driver is built-in (probe ordering bites you). - Prevent interrupt from being lost with the STM32 exti driver - Fix wake-up interrupts for the MIPS Ingenic driver - Fix an embarassing typo in the new module helpers, leading to the probe failing most of the time - The promised TI firmware rework that couldn't make it into the merge window due to a very badly managed set of dependencies
Diffstat (limited to 'arch/x86/kernel/process_64.c')
-rw-r--r--arch/x86/kernel/process_64.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index d6f946707270..9afefe325acb 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -390,7 +390,7 @@ unsigned long x86_fsgsbase_read_task(struct task_struct *task,
*/
mutex_lock(&task->mm->context.lock);
ldt = task->mm->context.ldt;
- if (unlikely(idx >= ldt->nr_entries))
+ if (unlikely(!ldt || idx >= ldt->nr_entries))
base = 0;
else
base = get_desc_base(ldt->entries + idx);