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mmc: cavium: Replace spin_lock_irqsave with spin_lock in hard IRQ 

It is redundant to do irqsave and irqrestore in hardIRQ context, where
it has been in a irq-disabled context.

Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com>
Link: https://lore.kernel.org/r/1612422438-32525-1-git-send-email-tanxiaofei@huawei.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Xiaofei Tan 2021-02-04 15:07:18 +08:00 committed by Ulf Hansson
parent 1791557ffb
commit f9261eb7d3
1 changed files with 2 additions and 3 deletions
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5
drivers/mmc/host/cavium.c
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@ -436,12 +436,11 @@ irqreturn_t cvm_mmc_interrupt(int irq, void *dev_id)
{
struct cvm_mmc_host *host = dev_id;
struct mmc_request *req;
unsigned long flags = 0;
u64 emm_int, rsp_sts;
bool host_done;
if (host->need_irq_handler_lock)
spin_lock_irqsave(&host->irq_handler_lock, flags);
spin_lock(&host->irq_handler_lock);
else
__acquire(&host->irq_handler_lock);
@ -504,7 +503,7 @@ irqreturn_t cvm_mmc_interrupt(int irq, void *dev_id)
host->release_bus(host);
out:
if (host->need_irq_handler_lock)
spin_unlock_irqrestore(&host->irq_handler_lock, flags);
spin_unlock(&host->irq_handler_lock);
else
__release(&host->irq_handler_lock);
return IRQ_RETVAL(emm_int != 0);