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| author | Maciej W. Rozycki <macro@linux-mips.org> | 2014-04-06 20:52:37 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2014-11-24 07:45:25 +0100 |
| commit | e2afb7de6e7dad21f9d709f80f23bbd3c5bdad11 (patch) | |
| tree | 4f12f7bc3f050cf3a0d889c5ea9c852fbd486af0 /drivers/tc | |
| parent | 187c26ddf0b201aeb7e343be19a3da72eef19db4 (diff) | |
| download | linux-stable-e2afb7de6e7dad21f9d709f80f23bbd3c5bdad11.tar.gz linux-stable-e2afb7de6e7dad21f9d709f80f23bbd3c5bdad11.tar.bz2 linux-stable-e2afb7de6e7dad21f9d709f80f23bbd3c5bdad11.zip | |
TC: Error handling clean-ups
Rewrite TURBOchannel error handling to use a common failure path, making
sure put_device is called for devices that failed initialization. While
at it update printk calls to use pr_err rather than KERN_ERR.
Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6701/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'drivers/tc')
| -rw-r--r-- | drivers/tc/tc.c | 36 |
1 files changed, 19 insertions, 17 deletions
diff --git a/drivers/tc/tc.c b/drivers/tc/tc.c index 946562389ca8..3be9519654e5 100644 --- a/drivers/tc/tc.c +++ b/drivers/tc/tc.c @@ -83,8 +83,7 @@ static void __init tc_bus_add_devices(struct tc_bus *tbus) /* Found a board, allocate it an entry in the list */ tdev = kzalloc(sizeof(*tdev), GFP_KERNEL); if (!tdev) { - printk(KERN_ERR "tc%x: unable to allocate tc_dev\n", - slot); + pr_err("tc%x: unable to allocate tc_dev\n", slot); goto out_err; } dev_set_name(&tdev->dev, "tc%x", slot); @@ -117,10 +116,10 @@ static void __init tc_bus_add_devices(struct tc_bus *tbus) tdev->resource.start = extslotaddr; tdev->resource.end = extslotaddr + devsize - 1; } else { - printk(KERN_ERR "%s: Cannot provide slot space " - "(%dMiB required, up to %dMiB supported)\n", - dev_name(&tdev->dev), devsize >> 20, - max(slotsize, extslotsize) >> 20); + pr_err("%s: Cannot provide slot space " + "(%ldMiB required, up to %ldMiB supported)\n", + dev_name(&tdev->dev), (long)(devsize >> 20), + (long)(max(slotsize, extslotsize) >> 20)); kfree(tdev); goto out_err; } @@ -147,14 +146,12 @@ static int __init tc_init(void) { /* Initialize the TURBOchannel bus */ if (tc_bus_get_info(&tc_bus)) - return 0; + goto out_err; INIT_LIST_HEAD(&tc_bus.devices); dev_set_name(&tc_bus.dev, "tc"); - if (device_register(&tc_bus.dev)) { - put_device(&tc_bus.dev); - return 0; - } + if (device_register(&tc_bus.dev)) + goto out_err_device; if (tc_bus.info.slot_size) { unsigned int tc_clock = tc_get_speed(&tc_bus) / 100000; @@ -172,8 +169,8 @@ static int __init tc_init(void) tc_bus.resource[0].flags = IORESOURCE_MEM; if (request_resource(&iomem_resource, &tc_bus.resource[0]) < 0) { - printk(KERN_ERR "tc: Cannot reserve resource\n"); - return 0; + pr_err("tc: Cannot reserve resource\n"); + goto out_err_device; } if (tc_bus.ext_slot_size) { tc_bus.resource[1].start = tc_bus.ext_slot_base; @@ -184,10 +181,8 @@ static int __init tc_init(void) tc_bus.resource[1].flags = IORESOURCE_MEM; if (request_resource(&iomem_resource, &tc_bus.resource[1]) < 0) { - printk(KERN_ERR - "tc: Cannot reserve resource\n"); - release_resource(&tc_bus.resource[0]); - return 0; + pr_err("tc: Cannot reserve resource\n"); + goto out_err_resource; } } @@ -195,6 +190,13 @@ static int __init tc_init(void) } return 0; + +out_err_resource: + release_resource(&tc_bus.resource[0]); +out_err_device: + put_device(&tc_bus.dev); +out_err: + return 0; } subsys_initcall(tc_init); |