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omapfb: fix multiple reference count leaks due to pm_runtime_get_sync
[ Upstream commit 78c2ce9 ] On calling pm_runtime_get_sync() the reference count of the device is incremented. In case of failure, decrement the reference count before returning the error. Signed-off-by: Aditya Pakki <pakki001@umn.edu> Cc: kjlu@umn.edu Cc: wu000273@umn.edu Cc: Allison Randal <allison@lohutok.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Enrico Weigelt <info@metux.net> cc: "Andrew F. Davis" <afd@ti.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Alexios Zavras <alexios.zavras@intel.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200614030528.128064-1-pakki001@umn.edu Signed-off-by: Sasha Levin <sashal@kernel.org>
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