mirror of https://gitee.com/openkylin/linux.git
UBI: improve error messages
Always print error code with error messages, sometimes it is extremely helpful info. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
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49dfc29928
commit
01f7b309e4
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@ -211,7 +211,8 @@ static int ubi_sysfs_init(struct ubi_device *ubi)
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out_unregister:
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device_unregister(&ubi->dev);
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out:
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ubi_err("failed to initialize sysfs for %s", ubi->ubi_name);
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ubi_err("failed to initialize sysfs for %s, error %d",
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ubi->ubi_name, err);
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return err;
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}
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@ -285,7 +286,7 @@ static int uif_init(struct ubi_device *ubi)
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err = cdev_add(&ubi->cdev, dev, 1);
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if (err) {
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ubi_err("cannot add character device %s", ubi->ubi_name);
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ubi_err("cannot add character device");
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goto out_unreg;
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}
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@ -296,8 +297,10 @@ static int uif_init(struct ubi_device *ubi)
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for (i = 0; i < ubi->vtbl_slots; i++)
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if (ubi->volumes[i]) {
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err = ubi_add_volume(ubi, i);
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if (err)
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if (err) {
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ubi_err("cannot add volume %d", i);
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goto out_volumes;
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}
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}
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return 0;
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@ -309,6 +312,7 @@ static int uif_init(struct ubi_device *ubi)
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cdev_del(&ubi->cdev);
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out_unreg:
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unregister_chrdev_region(ubi->cdev.dev, ubi->vtbl_slots + 1);
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ubi_err("cannot initialize UBI %s, error %d", ubi->ubi_name, err);
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return err;
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}
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@ -422,7 +426,8 @@ static int io_init(struct ubi_device *ubi)
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/* Make sure minimal I/O unit is power of 2 */
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if (!is_power_of_2(ubi->min_io_size)) {
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ubi_err("bad min. I/O unit");
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ubi_err("min. I/O unit (%d) is not power of 2",
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ubi->min_io_size);
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return -EINVAL;
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}
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@ -377,7 +377,8 @@ static ssize_t vol_cdev_write(struct file *file, const char __user *buf,
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err = ubi_more_update_data(ubi, vol->vol_id, buf, count);
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if (err < 0) {
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ubi_err("cannot write %zd bytes of update data", count);
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ubi_err("cannot write %zd bytes of update data, error %d",
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count, err);
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return err;
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}
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@ -305,7 +305,7 @@ int ubi_create_volume(struct ubi_device *ubi, struct ubi_mkvol_req *req)
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dev = MKDEV(MAJOR(ubi->cdev.dev), vol_id + 1);
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err = cdev_add(&vol->cdev, dev, 1);
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if (err) {
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ubi_err("cannot add character device for volume %d", vol_id);
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ubi_err("cannot add character device");
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goto out_mapping;
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}
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@ -319,8 +319,10 @@ int ubi_create_volume(struct ubi_device *ubi, struct ubi_mkvol_req *req)
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vol->dev.class = ubi_class;
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sprintf(&vol->dev.bus_id[0], "%s_%d", ubi->ubi_name, vol->vol_id);
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err = device_register(&vol->dev);
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if (err)
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if (err) {
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ubi_err("cannot register device");
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goto out_gluebi;
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}
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err = volume_sysfs_init(ubi, vol);
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if (err)
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@ -364,6 +366,7 @@ int ubi_create_volume(struct ubi_device *ubi, struct ubi_mkvol_req *req)
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out_unlock:
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spin_unlock(&ubi->volumes_lock);
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kfree(vol);
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ubi_err("cannot create volume %d, error %d", vol_id, err);
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return err;
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/*
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@ -380,6 +383,7 @@ int ubi_create_volume(struct ubi_device *ubi, struct ubi_mkvol_req *req)
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ubi->volumes[vol_id] = NULL;
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spin_unlock(&ubi->volumes_lock);
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volume_sysfs_close(vol);
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ubi_err("cannot create volume %d, error %d", vol_id, err);
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return err;
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}
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@ -591,7 +595,8 @@ int ubi_add_volume(struct ubi_device *ubi, int vol_id)
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dev = MKDEV(MAJOR(ubi->cdev.dev), vol->vol_id + 1);
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err = cdev_add(&vol->cdev, dev, 1);
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if (err) {
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ubi_err("cannot add character device for volume %d", vol_id);
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ubi_err("cannot add character device for volume %d, error %d",
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vol_id, err);
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return err;
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}
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