From: sumit.saxena@avagotech.com Date: Thu, 15 Oct 2015 08:10:34 +0000 (+0530) Subject: megaraid_sas: Initialize tasklet before setting up IRQs X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=91626c2701acad605c434b5e8245cbeea6671382;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git megaraid_sas: Initialize tasklet before setting up IRQs It may happen (kdump), that an interrupt is invoked just after the setup_irqs function was called but before the tasklet was initialised. At this phase the hw ints should have been disabled, but for unknown reason this mechanism seems to not work properly. From: Tomas Henzl Signed-off-by: Tomas Henzl Signed-off-by: Sumit Saxena Signed-off-by: Martin K. Petersen --- diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index d61e35380b0e..f9ed4ef04b80 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -4745,6 +4745,9 @@ static int megasas_init_fw(struct megasas_instance *instance) "current msix/online cpus\t: (%d/%d)\n", instance->msix_vectors, (unsigned int)num_online_cpus()); + tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet, + (unsigned long)instance); + if (instance->msix_vectors ? megasas_setup_irqs_msix(instance, 1) : megasas_setup_irqs_ioapic(instance)) @@ -4765,8 +4768,6 @@ static int megasas_init_fw(struct megasas_instance *instance) if (instance->instancet->init_adapter(instance)) goto fail_init_adapter; - tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet, - (unsigned long)instance); instance->instancet->enable_intr(instance);