badblocks: return boolean from badblocks_set() and badblocks_clear()

Change the return type of badblocks_set() and badblocks_clear()
from int to bool, indicating success or failure. Specifically:

- _badblocks_set() and _badblocks_clear() functions now return
true for success and false for failure.
- All calls to these functions are updated to handle the new
boolean return type.
- This change improves code clarity and ensures a more consistent
handling of success and failure states.

Signed-off-by: Zheng Qixing <zhengqixing@huawei.com>
Reviewed-by: Yu Kuai <yukuai3@huawei.com>
Acked-by: Coly Li <colyli@kernel.org>
Acked-by: Ira Weiny <ira.weiny@intel.com>
Link: https://lore.kernel.org/r/20250227075507.151331-11-zhengqixing@huaweicloud.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

3 files changed, 26 insertions, 25 deletions

diff --git a/drivers/block/null_blk/main.c b/drivers/block/null_blk/main.c
index 31d44cef6841..8f6025efc543 100644
--- a/drivers/block/null_blk/main.c
+++ b/drivers/block/null_blk/main.c
@@ -561,14 +561,14 @@ static ssize_t nullb_device_badblocks_store(struct config_item *item,
 		goto out;
 	/* enable badblocks */
 	cmpxchg(&t_dev->badblocks.shift, -1, 0);
-	if (buf[0] == '+')
-		ret = badblocks_set(&t_dev->badblocks, start,
-			end - start + 1, 1);
-	else
-		ret = badblocks_clear(&t_dev->badblocks, start,
-			end - start + 1);
-	if (ret == 0)
+	if (buf[0] == '+') {
+		if (badblocks_set(&t_dev->badblocks, start,
+				  end - start + 1, 1))
+			ret = count;
+	} else if (badblocks_clear(&t_dev->badblocks, start,
+				   end - start + 1)) {
 		ret = count;
+	}
 out:
 	kfree(orig);
 	return ret;
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 79cabe4be77d..95ceb6052360 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -1748,7 +1748,7 @@ static int super_1_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor_
 			count <<= sb->bblog_shift;
 			if (bb + 1 == 0)
 				break;
-			if (badblocks_set(&rdev->badblocks, sector, count, 1))
+			if (!badblocks_set(&rdev->badblocks, sector, count, 1))
 				return -EINVAL;
 		}
 	} else if (sb->bblog_offset != 0)
@@ -9833,7 +9833,6 @@ int rdev_set_badblocks(struct md_rdev *rdev, sector_t s, int sectors,
 		       int is_new)
 {
 	struct mddev *mddev = rdev->mddev;
-	int rv;
 
 	/*
 	 * Recording new badblocks for faulty rdev will force unnecessary
@@ -9849,33 +9848,35 @@ int rdev_set_badblocks(struct md_rdev *rdev, sector_t s, int sectors,
 		s += rdev->new_data_offset;
 	else
 		s += rdev->data_offset;
-	rv = badblocks_set(&rdev->badblocks, s, sectors, 0);
-	if (rv == 0) {
-		/* Make sure they get written out promptly */
-		if (test_bit(ExternalBbl, &rdev->flags))
-			sysfs_notify_dirent_safe(rdev->sysfs_unack_badblocks);
-		sysfs_notify_dirent_safe(rdev->sysfs_state);
-		set_mask_bits(&mddev->sb_flags, 0,
-			      BIT(MD_SB_CHANGE_CLEAN) | BIT(MD_SB_CHANGE_PENDING));
-		md_wakeup_thread(rdev->mddev->thread);
-		return 1;
-	} else
+
+	if (!badblocks_set(&rdev->badblocks, s, sectors, 0))
 		return 0;
+
+	/* Make sure they get written out promptly */
+	if (test_bit(ExternalBbl, &rdev->flags))
+		sysfs_notify_dirent_safe(rdev->sysfs_unack_badblocks);
+	sysfs_notify_dirent_safe(rdev->sysfs_state);
+	set_mask_bits(&mddev->sb_flags, 0,
+		      BIT(MD_SB_CHANGE_CLEAN) | BIT(MD_SB_CHANGE_PENDING));
+	md_wakeup_thread(rdev->mddev->thread);
+	return 1;
 }
 EXPORT_SYMBOL_GPL(rdev_set_badblocks);
 
 int rdev_clear_badblocks(struct md_rdev *rdev, sector_t s, int sectors,
 			 int is_new)
 {
-	int rv;
 	if (is_new)
 		s += rdev->new_data_offset;
 	else
 		s += rdev->data_offset;
-	rv = badblocks_clear(&rdev->badblocks, s, sectors);
-	if ((rv == 0) && test_bit(ExternalBbl, &rdev->flags))
+
+	if (!badblocks_clear(&rdev->badblocks, s, sectors))
+		return 0;
+
+	if (test_bit(ExternalBbl, &rdev->flags))
 		sysfs_notify_dirent_safe(rdev->sysfs_badblocks);
-	return rv;
+	return 1;
 }
 EXPORT_SYMBOL_GPL(rdev_clear_badblocks);
 
diff --git a/drivers/nvdimm/badrange.c b/drivers/nvdimm/badrange.c
index a002ea6fdd84..ee478ccde7c6 100644
--- a/drivers/nvdimm/badrange.c
+++ b/drivers/nvdimm/badrange.c
@@ -167,7 +167,7 @@ static void set_badblock(struct badblocks *bb, sector_t s, int num)
 	dev_dbg(bb->dev, "Found a bad range (0x%llx, 0x%llx)\n",
 			(u64) s * 512, (u64) num * 512);
 	/* this isn't an error as the hardware will still throw an exception */
-	if (badblocks_set(bb, s, num, 1))
+	if (!badblocks_set(bb, s, num, 1))
 		dev_info_once(bb->dev, "%s: failed for sector %llx\n",
 				__func__, (u64) s);
 }