AcoSail/kernel_optimize_test
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UBI: improve error messages

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Always print error code with error messages, sometimes it is
extremely helpful info.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
This commit is contained in:
Artem Bityutskiy 2007-12-15 19:56:51 +02:00
parent 49dfc29928
commit 01f7b309e4
3 changed files with 19 additions and 8 deletions
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13
drivers/mtd/ubi/build.c
View File

@ -211,7 +211,8 @@ static int ubi_sysfs_init(struct ubi_device *ubi)
out_unregister:
device_unregister(&ubi->dev);
out:
ubi_err("failed to initialize sysfs for %s", ubi->ubi_name);
ubi_err("failed to initialize sysfs for %s, error %d",
ubi->ubi_name, err);
return err;
}
@ -285,7 +286,7 @@ static int uif_init(struct ubi_device *ubi)
err = cdev_add(&ubi->cdev, dev, 1);
if (err) {
ubi_err("cannot add character device %s", ubi->ubi_name);
ubi_err("cannot add character device");
goto out_unreg;
}
@ -296,8 +297,10 @@ static int uif_init(struct ubi_device *ubi)
for (i = 0; i < ubi->vtbl_slots; i++)
if (ubi->volumes[i]) {
err = ubi_add_volume(ubi, i);
if (err)
if (err) {
ubi_err("cannot add volume %d", i);
goto out_volumes;
}
}
return 0;
@ -309,6 +312,7 @@ static int uif_init(struct ubi_device *ubi)
cdev_del(&ubi->cdev);
out_unreg:
unregister_chrdev_region(ubi->cdev.dev, ubi->vtbl_slots + 1);
ubi_err("cannot initialize UBI %s, error %d", ubi->ubi_name, err);
return err;
}
@ -422,7 +426,8 @@ static int io_init(struct ubi_device *ubi)
/* Make sure minimal I/O unit is power of 2 */
if (!is_power_of_2(ubi->min_io_size)) {
ubi_err("bad min. I/O unit");
ubi_err("min. I/O unit (%d) is not power of 2",
ubi->min_io_size);
return -EINVAL;
}

3
drivers/mtd/ubi/cdev.c
View File

@ -377,7 +377,8 @@ static ssize_t vol_cdev_write(struct file *file, const char __user *buf,
err = ubi_more_update_data(ubi, vol->vol_id, buf, count);
if (err < 0) {
ubi_err("cannot write %zd bytes of update data", count);
ubi_err("cannot write %zd bytes of update data, error %d",
count, err);
return err;
}

11
drivers/mtd/ubi/vmt.c
View File

@ -305,7 +305,7 @@ int ubi_create_volume(struct ubi_device *ubi, struct ubi_mkvol_req *req)
dev = MKDEV(MAJOR(ubi->cdev.dev), vol_id + 1);
err = cdev_add(&vol->cdev, dev, 1);
if (err) {
ubi_err("cannot add character device for volume %d", vol_id);
ubi_err("cannot add character device");
goto out_mapping;
}
@ -319,8 +319,10 @@ int ubi_create_volume(struct ubi_device *ubi, struct ubi_mkvol_req *req)
vol->dev.class = ubi_class;
sprintf(&vol->dev.bus_id[0], "%s_%d", ubi->ubi_name, vol->vol_id);
err = device_register(&vol->dev);
if (err)
if (err) {
ubi_err("cannot register device");
goto out_gluebi;
}
err = volume_sysfs_init(ubi, vol);
if (err)
@ -364,6 +366,7 @@ int ubi_create_volume(struct ubi_device *ubi, struct ubi_mkvol_req *req)
out_unlock:
spin_unlock(&ubi->volumes_lock);
kfree(vol);
ubi_err("cannot create volume %d, error %d", vol_id, err);
return err;
/*
@ -380,6 +383,7 @@ int ubi_create_volume(struct ubi_device *ubi, struct ubi_mkvol_req *req)
ubi->volumes[vol_id] = NULL;
spin_unlock(&ubi->volumes_lock);
volume_sysfs_close(vol);
ubi_err("cannot create volume %d, error %d", vol_id, err);
return err;
}
@ -591,7 +595,8 @@ int ubi_add_volume(struct ubi_device *ubi, int vol_id)
dev = MKDEV(MAJOR(ubi->cdev.dev), vol->vol_id + 1);
err = cdev_add(&vol->cdev, dev, 1);
if (err) {
ubi_err("cannot add character device for volume %d", vol_id);
ubi_err("cannot add character device for volume %d, error %d",
vol_id, err);
return err;
}