[PATCH][V3] ARM: pmu: fix memory leak due to early return not freeing irqs

[colin.king@canonical.com (Colin Ian King)]

On 18/05/15 14:27, Sudeep Holla wrote:
> 
> 
> On 18/05/15 13:57, Colin King wrote:
>> From: Colin Ian King <colin.king@canonical.com>
>>
>> Recent commit 338d9dd3e2ae ("ARM: 8351/1: perf: don't warn about
>> missing interrupt-affinity property for PPIs") introduced a memory
>> leak of irqs on the "Don't bother with PPIs" return path. This issue
>> was picked up by static analysis by cppcheck:
>>
>> [arch/arm/kernel/perf_event_cpu.c:315]: (error) Memory leak: irqs
>>
>> Instead, perform allocation of irqs after getting the irq hence
>> removing need to clean up an allocation on the PPI affine return path.
>>
>> Fixes: 338d9dd3e2ae ("ARM: 8351/1: perf: don't warn about missing
>> interrupt-affinity property for PPIs")
> 
> Will Deacon has similar patch[1] in Russell's patch tracker(8357/1)
> 
> Regards,
> Sudeep

OK, sorry for the dup and noise.

> 
> [1]
> http://lists.infradead.org/pipermail/linux-arm-kernel/2015-May/342367.html
> [2] http://www.arm.linux.org.uk/developer/patches/viewpatch.php?id=8357/1