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path: root/drivers/md/dm-zero.c
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Diffstat (limited to 'drivers/md/dm-zero.c')
-rw-r--r--drivers/md/dm-zero.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/md/dm-zero.c b/drivers/md/dm-zero.c
index 51c0639b2487..ea569f7348d2 100644
--- a/drivers/md/dm-zero.c
+++ b/drivers/md/dm-zero.c
@@ -10,13 +10,15 @@
10#include <linux/init.h> 10#include <linux/init.h>
11#include <linux/bio.h> 11#include <linux/bio.h>
12 12
13#define DM_MSG_PREFIX "zero"
14
13/* 15/*
14 * Construct a dummy mapping that only returns zeros 16 * Construct a dummy mapping that only returns zeros
15 */ 17 */
16static int zero_ctr(struct dm_target *ti, unsigned int argc, char **argv) 18static int zero_ctr(struct dm_target *ti, unsigned int argc, char **argv)
17{ 19{
18 if (argc != 0) { 20 if (argc != 0) {
19 ti->error = "dm-zero: No arguments required"; 21 ti->error = "No arguments required";
20 return -EINVAL; 22 return -EINVAL;
21 } 23 }
22 24
@@ -60,7 +62,7 @@ static int __init dm_zero_init(void)
60 int r = dm_register_target(&zero_target); 62 int r = dm_register_target(&zero_target);
61 63
62 if (r < 0) 64 if (r < 0)
63 DMERR("zero: register failed %d", r); 65 DMERR("register failed %d", r);
64 66
65 return r; 67 return r;
66} 68}
@@ -70,7 +72,7 @@ static void __exit dm_zero_exit(void)
70 int r = dm_unregister_target(&zero_target); 72 int r = dm_unregister_target(&zero_target);
71 73
72 if (r < 0) 74 if (r < 0)
73 DMERR("zero: unregister failed %d", r); 75 DMERR("unregister failed %d", r);
74} 76}
75 77
76module_init(dm_zero_init) 78module_init(dm_zero_init)