[PATCH v2] staging: media: atomisp: drop unnecessary else block after return/break

Shyam Sunder Reddy Padira posted 1 patch 1 month, 1 week ago
.../staging/media/atomisp/pci/atomisp_fops.c  | 18 +++++-------
.../staging/media/atomisp/pci/atomisp_v4l2.c  | 29 +++++++++----------
2 files changed, 21 insertions(+), 26 deletions(-)
[PATCH v2] staging: media: atomisp: drop unnecessary else block after return/break
Posted by Shyam Sunder Reddy Padira 1 month, 1 week ago
Remove redundant else blocks following return or break statements.
As control flow exits in these cases, the else branch is
unnecessary. Dropping it improves code readability.

No functional change.

Signed-off-by: Shyam Sunder Reddy Padira <shyamsunderreddypadira@gmail.com>
---
Changes in v2:
- Fixed grammar and added missing spaces after punctuation.
- Consolidated dev_err() call to occupy only two lines.

 .../staging/media/atomisp/pci/atomisp_fops.c  | 18 +++++-------
 .../staging/media/atomisp/pci/atomisp_v4l2.c  | 29 +++++++++----------
 2 files changed, 21 insertions(+), 26 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/atomisp_fops.c b/drivers/staging/media/atomisp/pci/atomisp_fops.c
index c7aef066f209..1aee082d34bf 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_fops.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_fops.c
@@ -125,10 +125,8 @@ static int atomisp_q_one_metadata_buffer(struct atomisp_sub_device *asd,
 					     stream_id, css_pipe_id)) {
 		list_add(&metadata_buf->list, metadata_list);
 		return -EINVAL;
-	} else {
-		list_add_tail(&metadata_buf->list,
-			      &asd->metadata_in_css[md_type]);
 	}
+	list_add_tail(&metadata_buf->list, &asd->metadata_in_css[md_type]);
 	asd->metadata_bufs_in_css[stream_id][css_pipe_id]++;
 
 	return 0;
@@ -165,11 +163,10 @@ static int atomisp_q_one_s3a_buffer(struct atomisp_sub_device *asd,
 		/* got from head, so return back to the head */
 		list_add(&s3a_buf->list, s3a_list);
 		return -EINVAL;
-	} else {
-		list_add_tail(&s3a_buf->list, &asd->s3a_stats_in_css);
-		if (s3a_list == &asd->s3a_stats_ready)
-			dev_dbg(asd->isp->dev, "drop one s3a stat with exp_id %d\n", exp_id);
 	}
+	list_add_tail(&s3a_buf->list, &asd->s3a_stats_in_css);
+	if (s3a_list == &asd->s3a_stats_ready)
+		dev_dbg(asd->isp->dev, "drop one s3a stat with exp_id %d\n", exp_id);
 
 	asd->s3a_bufs_in_css[css_pipe_id]++;
 	return 0;
@@ -206,11 +203,10 @@ static int atomisp_q_one_dis_buffer(struct atomisp_sub_device *asd,
 		list_add_tail(&dis_buf->list, &asd->dis_stats);
 		spin_unlock_irqrestore(&asd->dis_stats_lock, irqflags);
 		return -EINVAL;
-	} else {
-		spin_lock_irqsave(&asd->dis_stats_lock, irqflags);
-		list_add_tail(&dis_buf->list, &asd->dis_stats_in_css);
-		spin_unlock_irqrestore(&asd->dis_stats_lock, irqflags);
 	}
+	spin_lock_irqsave(&asd->dis_stats_lock, irqflags);
+	list_add_tail(&dis_buf->list, &asd->dis_stats_in_css);
+	spin_unlock_irqrestore(&asd->dis_stats_lock, irqflags);
 
 	asd->dis_bufs_in_css++;
 
diff --git a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
index 900a67552d6a..32b07834d66d 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
@@ -467,22 +467,21 @@ static int atomisp_mrfld_pre_power_down(struct atomisp_device *isp)
 			__func__, irq);
 		spin_unlock_irqrestore(&isp->lock, flags);
 		return -EAGAIN;
-	} else {
-		pci_read_config_dword(pdev, PCI_INTERRUPT_CTRL, &irq);
-		irq &= BIT(INTR_IIR);
-		pci_write_config_dword(pdev, PCI_INTERRUPT_CTRL, irq);
-
-		pci_read_config_dword(pdev, PCI_INTERRUPT_CTRL, &irq);
-		if (!(irq & BIT(INTR_IIR))) {
-			atomisp_css2_hw_store_32(MRFLD_INTR_ENABLE_REG, 0x0);
-			goto done;
-		}
-		dev_err(isp->dev,
-			"%s: error in iunit interrupt. status reg=0x%x\n",
-			__func__, irq);
-		spin_unlock_irqrestore(&isp->lock, flags);
-		return -EAGAIN;
 	}
+	pci_read_config_dword(pdev, PCI_INTERRUPT_CTRL, &irq);
+	irq &= BIT(INTR_IIR);
+	pci_write_config_dword(pdev, PCI_INTERRUPT_CTRL, irq);
+
+	pci_read_config_dword(pdev, PCI_INTERRUPT_CTRL, &irq);
+	if (!(irq & BIT(INTR_IIR))) {
+		atomisp_css2_hw_store_32(MRFLD_INTR_ENABLE_REG, 0x0);
+		goto done;
+	}
+	dev_err(isp->dev, "%s: error in iunit interrupt. status reg=0x%x\n",
+		__func__, irq);
+	spin_unlock_irqrestore(&isp->lock, flags);
+	return -EAGAIN;
+
 done:
 	/*
 	 * MRFLD WORKAROUND:
-- 
2.43.0
Re: [PATCH v2] staging: media: atomisp: drop unnecessary else block after return/break
Posted by Andy Shevchenko 1 month, 1 week ago
On Mon, May 04, 2026 at 04:06:56PM +0530, Shyam Sunder Reddy Padira wrote:
> Remove redundant else blocks following return or break statements.
> As control flow exits in these cases, the else branch is
> unnecessary. Dropping it improves code readability.
> 
> No functional change.

There is still a lot of room to improve in these pieces of code, but it is
out of scope of this simple change, FWIW,
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>

-- 
With Best Regards,
Andy Shevchenko