[ Upstream commitaa578e8975] If an error occurs after request_mem_region(), a corresponding release_mem_region() should be called, as already done in the remove function. Fixes:1da177e4c3("Linux-2.6.12-rc2") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Sasha Levin <sashal@kernel.org>