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[SCSI] scsi_debug: must_check fixes 

Check all __must_check warnings in scsi_debug.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Randy Dunlap 2006-07-11 20:53:22 -07:00 committed by James Bottomley
parent e8bf39417b
commit 6ecaff7fe8
1 changed files with 54 additions and 18 deletions
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72
drivers/scsi/scsi_debug.c
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@ -286,7 +286,7 @@ static int inquiry_evpd_83(unsigned char * arr, int target_dev_id,
int dev_id_num, const char * dev_id_str,
int dev_id_str_len);
static int inquiry_evpd_88(unsigned char * arr, int target_dev_id);
static void do_create_driverfs_files(void);
static int do_create_driverfs_files(void);
static void do_remove_driverfs_files(void);
static int sdebug_add_adapter(void);
@ -2487,19 +2487,22 @@ static ssize_t sdebug_add_host_store(struct device_driver * ddp,
DRIVER_ATTR(add_host, S_IRUGO | S_IWUSR, sdebug_add_host_show,
sdebug_add_host_store);
static void do_create_driverfs_files(void)
static int do_create_driverfs_files(void)
{
driver_create_file(&sdebug_driverfs_driver, &driver_attr_add_host);
driver_create_file(&sdebug_driverfs_driver, &driver_attr_delay);
driver_create_file(&sdebug_driverfs_driver, &driver_attr_dev_size_mb);
driver_create_file(&sdebug_driverfs_driver, &driver_attr_dsense);
driver_create_file(&sdebug_driverfs_driver, &driver_attr_every_nth);
driver_create_file(&sdebug_driverfs_driver, &driver_attr_max_luns);
driver_create_file(&sdebug_driverfs_driver, &driver_attr_num_tgts);
driver_create_file(&sdebug_driverfs_driver, &driver_attr_num_parts);
driver_create_file(&sdebug_driverfs_driver, &driver_attr_ptype);
driver_create_file(&sdebug_driverfs_driver, &driver_attr_opts);
driver_create_file(&sdebug_driverfs_driver, &driver_attr_scsi_level);
int ret;
ret = driver_create_file(&sdebug_driverfs_driver, &driver_attr_add_host);
ret |= driver_create_file(&sdebug_driverfs_driver, &driver_attr_delay);
ret |= driver_create_file(&sdebug_driverfs_driver, &driver_attr_dev_size_mb);
ret |= driver_create_file(&sdebug_driverfs_driver, &driver_attr_dsense);
ret |= driver_create_file(&sdebug_driverfs_driver, &driver_attr_every_nth);
ret |= driver_create_file(&sdebug_driverfs_driver, &driver_attr_max_luns);
ret |= driver_create_file(&sdebug_driverfs_driver, &driver_attr_num_tgts);
ret |= driver_create_file(&sdebug_driverfs_driver, &driver_attr_num_parts);
ret |= driver_create_file(&sdebug_driverfs_driver, &driver_attr_ptype);
ret |= driver_create_file(&sdebug_driverfs_driver, &driver_attr_opts);
ret |= driver_create_file(&sdebug_driverfs_driver, &driver_attr_scsi_level);
return ret;
}
static void do_remove_driverfs_files(void)
@ -2522,6 +2525,7 @@ static int __init scsi_debug_init(void)
unsigned int sz;
int host_to_add;
int k;
int ret;
if (scsi_debug_dev_size_mb < 1)
scsi_debug_dev_size_mb = 1; /* force minimum 1 MB ramdisk */
@ -2560,12 +2564,32 @@ static int __init scsi_debug_init(void)
if (scsi_debug_num_parts > 0)
sdebug_build_parts(fake_storep);
init_all_queued();
ret = device_register(&pseudo_primary);
if (ret < 0) {
printk(KERN_WARNING "scsi_debug: device_register error: %d\n",
ret);
goto free_vm;
}
ret = bus_register(&pseudo_lld_bus);
if (ret < 0) {
printk(KERN_WARNING "scsi_debug: bus_register error: %d\n",
ret);
goto dev_unreg;
}
ret = driver_register(&sdebug_driverfs_driver);
if (ret < 0) {
printk(KERN_WARNING "scsi_debug: driver_register error: %d\n",
ret);
goto bus_unreg;
}
ret = do_create_driverfs_files();
if (ret < 0) {
printk(KERN_WARNING "scsi_debug: driver_create_file error: %d\n",
ret);
goto del_files;
}
device_register(&pseudo_primary);
bus_register(&pseudo_lld_bus);
driver_register(&sdebug_driverfs_driver);
do_create_driverfs_files();
init_all_queued();
sdebug_driver_template.proc_name = (char *)sdebug_proc_name;
@ -2585,6 +2609,18 @@ static int __init scsi_debug_init(void)
scsi_debug_add_host);
}
return 0;
del_files:
do_remove_driverfs_files();
driver_unregister(&sdebug_driverfs_driver);
bus_unreg:
bus_unregister(&pseudo_lld_bus);
dev_unreg:
device_unregister(&pseudo_primary);
free_vm:
vfree(fake_storep);
return ret;
}
static void __exit scsi_debug_exit(void)