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Date: Tue, 10 Oct 2006 03:02:13 -0400
From: Jeff Garzik <jeff@...zik.org>
To: minyard@....org, Andrew Morton <akpm@...l.org>,
LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] ipmi: handle sysfs errors
Signed-off-by: Jeff Garzik <jeff@...zik.org>
---
drivers/char/ipmi/ipmi_msghandler.c | 122 +++++++++++++++++++++++++++---------
1 file changed, 93 insertions(+), 29 deletions(-)
cf8f730ca9ec3636609ca08b357c615c689b86df
diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
index 2455e8d..34a4fd1 100644
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -1928,13 +1928,8 @@ static ssize_t guid_show(struct device *
(long long) bmc->guid[8]);
}
-static void
-cleanup_bmc_device(struct kref *ref)
+static void remove_files(struct bmc_device *bmc)
{
- struct bmc_device *bmc;
-
- bmc = container_of(ref, struct bmc_device, refcount);
-
device_remove_file(&bmc->dev->dev,
&bmc->device_id_attr);
device_remove_file(&bmc->dev->dev,
@@ -1951,12 +1946,23 @@ cleanup_bmc_device(struct kref *ref)
&bmc->manufacturer_id_attr);
device_remove_file(&bmc->dev->dev,
&bmc->product_id_attr);
+
if (bmc->id.aux_firmware_revision_set)
device_remove_file(&bmc->dev->dev,
&bmc->aux_firmware_rev_attr);
if (bmc->guid_set)
device_remove_file(&bmc->dev->dev,
&bmc->guid_attr);
+}
+
+static void
+cleanup_bmc_device(struct kref *ref)
+{
+ struct bmc_device *bmc;
+
+ bmc = container_of(ref, struct bmc_device, refcount);
+
+ remove_files(bmc);
platform_device_unregister(bmc->dev);
kfree(bmc);
}
@@ -1977,6 +1983,79 @@ static void ipmi_bmc_unregister(ipmi_smi
mutex_unlock(&ipmidriver_mutex);
}
+static int create_files(struct bmc_device *bmc)
+{
+ int err;
+
+ err = device_create_file(&bmc->dev->dev,
+ &bmc->device_id_attr);
+ if (err) goto out;
+ err = device_create_file(&bmc->dev->dev,
+ &bmc->provides_dev_sdrs_attr);
+ if (err) goto out_devid;
+ err = device_create_file(&bmc->dev->dev,
+ &bmc->revision_attr);
+ if (err) goto out_sdrs;
+ err = device_create_file(&bmc->dev->dev,
+ &bmc->firmware_rev_attr);
+ if (err) goto out_rev;
+ err = device_create_file(&bmc->dev->dev,
+ &bmc->version_attr);
+ if (err) goto out_firm;
+ err = device_create_file(&bmc->dev->dev,
+ &bmc->add_dev_support_attr);
+ if (err) goto out_version;
+ err = device_create_file(&bmc->dev->dev,
+ &bmc->manufacturer_id_attr);
+ if (err) goto out_add_dev;
+ err = device_create_file(&bmc->dev->dev,
+ &bmc->product_id_attr);
+ if (err) goto out_manu;
+ if (bmc->id.aux_firmware_revision_set) {
+ err = device_create_file(&bmc->dev->dev,
+ &bmc->aux_firmware_rev_attr);
+ if (err) goto out_prod_id;
+ }
+ if (bmc->guid_set) {
+ err = device_create_file(&bmc->dev->dev,
+ &bmc->guid_attr);
+ if (err) goto out_aux_firm;
+ }
+
+ return 0;
+
+out_aux_firm:
+ if (bmc->id.aux_firmware_revision_set)
+ device_remove_file(&bmc->dev->dev,
+ &bmc->aux_firmware_rev_attr);
+out_prod_id:
+ device_remove_file(&bmc->dev->dev,
+ &bmc->product_id_attr);
+out_manu:
+ device_remove_file(&bmc->dev->dev,
+ &bmc->manufacturer_id_attr);
+out_add_dev:
+ device_remove_file(&bmc->dev->dev,
+ &bmc->add_dev_support_attr);
+out_version:
+ device_remove_file(&bmc->dev->dev,
+ &bmc->version_attr);
+out_firm:
+ device_remove_file(&bmc->dev->dev,
+ &bmc->firmware_rev_attr);
+out_rev:
+ device_remove_file(&bmc->dev->dev,
+ &bmc->revision_attr);
+out_sdrs:
+ device_remove_file(&bmc->dev->dev,
+ &bmc->provides_dev_sdrs_attr);
+out_devid:
+ device_remove_file(&bmc->dev->dev,
+ &bmc->device_id_attr);
+out:
+ return err;
+}
+
static int ipmi_bmc_register(ipmi_smi_t intf)
{
int rv;
@@ -2051,7 +2130,6 @@ static int ipmi_bmc_register(ipmi_smi_t
bmc->provides_dev_sdrs_attr.attr.mode = S_IRUGO;
bmc->provides_dev_sdrs_attr.show = provides_dev_sdrs_show;
-
bmc->revision_attr.attr.name = "revision";
bmc->revision_attr.attr.owner = THIS_MODULE;
bmc->revision_attr.attr.mode = S_IRUGO;
@@ -2093,28 +2171,14 @@ static int ipmi_bmc_register(ipmi_smi_t
bmc->aux_firmware_rev_attr.attr.mode = S_IRUGO;
bmc->aux_firmware_rev_attr.show = aux_firmware_rev_show;
- device_create_file(&bmc->dev->dev,
- &bmc->device_id_attr);
- device_create_file(&bmc->dev->dev,
- &bmc->provides_dev_sdrs_attr);
- device_create_file(&bmc->dev->dev,
- &bmc->revision_attr);
- device_create_file(&bmc->dev->dev,
- &bmc->firmware_rev_attr);
- device_create_file(&bmc->dev->dev,
- &bmc->version_attr);
- device_create_file(&bmc->dev->dev,
- &bmc->add_dev_support_attr);
- device_create_file(&bmc->dev->dev,
- &bmc->manufacturer_id_attr);
- device_create_file(&bmc->dev->dev,
- &bmc->product_id_attr);
- if (bmc->id.aux_firmware_revision_set)
- device_create_file(&bmc->dev->dev,
- &bmc->aux_firmware_rev_attr);
- if (bmc->guid_set)
- device_create_file(&bmc->dev->dev,
- &bmc->guid_attr);
+ rv = create_files(bmc);
+ if (rv) {
+ mutex_lock(&ipmidriver_mutex);
+ platform_device_unregister(bmc->dev);
+ mutex_unlock(&ipmidriver_mutex);
+
+ return rv;
+ }
printk(KERN_INFO
"ipmi: Found new BMC (man_id: 0x%6.6x, "
-
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