Spinlock query

Hi,

In my driver (Process context), I have written the following code:

--------------------------------------------
spin_lock(lock)
....
//Critical section to manipulate driver data
....
spin_u lock(lock)
---------------------------------------------

I have written similar code in my interrupt handler (Interrupt
context). The driver data is not accessed from anywhere else. Is my
code safe from any potential concurrency issues? Is there a need to
use spin_lock_irqsave()? In both the places?

I intend to run the driver on SMP machine.

Regards,

Rick
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