tree 6a46cd1950f8523633b2c17ff9af9f4a8563ed99
parent 59fffa34069d80662b41438b11130771b4e2a897
author Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> 1467583464 +0300
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1472649595 +0200

platform: don't return 0 from platform_get_irq[_byname]() on error

of_irq_get[_byname]() return 0 iff  irq_create_of_mapping() call fails.
Returning both  error code and 0 on failure is a sign of a misdesigned API,
it makes the failure check unnecessarily complex and error prone. We should
rely  on the platform IRQ resource in this case, not return 0,  especially
as 0 can be  a valid  IRQ resource too...

Fixes: aff008ad813c ("platform_get_irq: Revert to platform_get_resource if of_irq_get fails")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
CC: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>