request_mem_region() will call kzalloc to allocate memory for struct
resource. release_resource() unregisters the resource but does not free
the allocated memory, thus use release_mem_region() instead to fix the
memory leak.
Also add a missing iounmap() in omap_rtc_remove().
Signed-off-by: Axel Lin <axel.lin@gmail.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Sekhar Nori <nsekhar@ti.com> Cc: Kevin Hilman <khilman@deeprootsystems.com> Cc: Tony Lindgren <tony@atomide.com> Acked-by: Mark A. Greer <mgreer@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>