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authorDamien Le Moal <damien.lemoal@wdc.com>2020-07-16 13:54:40 +0900
committerSong Liu <songliubraving@fb.com>2020-07-15 22:46:07 -0700
commit5e3b8a8d59b2064f68ab349182f5dc5f5bb4fd30 (patch)
treef048c8bdfcba8d8219307879bdf6d25e8b985b30
parent659bf827ba8f1183b714341d8a1d4b1e446178d9 (diff)
md: Fix compilation warning
Remove the if statement around the calls to sysfs_link_rdev() to avoid the compilation warnings: warning: suggest braces around empty body in an ‘if’ statement when compiling with W=1. For the call to sysfs_create_link() generating the same warning, use the err variable to store the function result, avoiding triggering another warning as the function is declared as 'warn_unused_result'. Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> Signed-off-by: Song Liu <songliubraving@fb.com>
-rw-r--r--drivers/md/md.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c
index fc33f2f8a415..9d740e4181ff 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -2469,8 +2469,8 @@ static int bind_rdev_to_array(struct md_rdev *rdev, struct mddev *mddev)
goto fail;
ko = &part_to_dev(rdev->bdev->bd_part)->kobj;
- if (sysfs_create_link(&rdev->kobj, ko, "block"))
- /* failure here is OK */;
+ /* failure here is OK */
+ err = sysfs_create_link(&rdev->kobj, ko, "block");
rdev->sysfs_state = sysfs_get_dirent_safe(rdev->kobj.sd, "state");
rdev->sysfs_unack_badblocks =
sysfs_get_dirent_safe(rdev->kobj.sd, "unacknowledged_bad_blocks");
@@ -3238,8 +3238,8 @@ slot_store(struct md_rdev *rdev, const char *buf, size_t len)
return err;
} else
sysfs_notify_dirent_safe(rdev->sysfs_state);
- if (sysfs_link_rdev(rdev->mddev, rdev))
- /* failure here is OK */;
+ /* failure here is OK */;
+ sysfs_link_rdev(rdev->mddev, rdev);
/* don't wakeup anyone, leave that to userspace. */
} else {
if (slot >= rdev->mddev->raid_disks &&
@@ -9113,8 +9113,8 @@ static int remove_and_add_spares(struct mddev *mddev,
rdev->recovery_offset = 0;
}
if (mddev->pers->hot_add_disk(mddev, rdev) == 0) {
- if (sysfs_link_rdev(mddev, rdev))
- /* failure here is OK */;
+ /* failure here is OK */
+ sysfs_link_rdev(mddev, rdev);
if (!test_bit(Journal, &rdev->flags))
spares++;
md_new_event(mddev);