From ffa3eb010dd8edc696cd958ba684d8a6d1cf3dff Mon Sep 17 00:00:00 2001 From: Phil Carmody Date: Wed, 17 Sep 2014 01:00:53 +0300 Subject: [PATCH] powerpc/via-pmu: fix error path in find_via_pmu() Cleanup was not in the reverse order from the set-up, so not all the gotos made sense, and also it was being avoided completely upon failure of init_pmu(). Signed-off-by: Phil Carmody Signed-off-by: Aaro Koskinen Signed-off-by: Benjamin Herrenschmidt --- drivers/macintosh/via-pmu.c | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c index dee88e59f0d3..62212358640d 100644 --- a/drivers/macintosh/via-pmu.c +++ b/drivers/macintosh/via-pmu.c @@ -332,7 +332,7 @@ int __init find_via_pmu(void) } if (gpio_reg == NULL) { printk(KERN_ERR "via-pmu: Can't find GPIO reg !\n"); - goto fail_gpio; + goto fail; } } else pmu_kind = PMU_UNKNOWN; @@ -340,7 +340,7 @@ int __init find_via_pmu(void) via = ioremap(taddr, 0x2000); if (via == NULL) { printk(KERN_ERR "via-pmu: Can't map address !\n"); - goto fail; + goto fail_via_remap; } out_8(&via[IER], IER_CLR | 0x7f); /* disable all intrs */ @@ -348,10 +348,8 @@ int __init find_via_pmu(void) pmu_state = idle; - if (!init_pmu()) { - via = NULL; - return 0; - } + if (!init_pmu()) + goto fail_init; printk(KERN_INFO "PMU driver v%d initialized for %s, firmware: %02x\n", PMU_DRIVER_VERSION, pbook_type[pmu_kind], pmu_version); @@ -359,11 +357,15 @@ int __init find_via_pmu(void) sys_ctrler = SYS_CTRLER_PMU; return 1; - fail: - of_node_put(vias); + + fail_init: + iounmap(via); + via = NULL; + fail_via_remap: iounmap(gpio_reg); gpio_reg = NULL; - fail_gpio: + fail: + of_node_put(vias); vias = NULL; return 0; } -- 2.20.1