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From: Markus Elfring <Markus.Elfring@web.de>
To: dri-devel@lists.freedesktop.org, Kees Cook <kees@kernel.org>,
	Koby Elbaz <koby.elbaz@intel.com>,
	Konstantin Sinyuk <konstantin.sinyuk@intel.com>,
	Oded Gabbay <ogabbay@kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>, kernel-janitors@vger.kernel.org
Subject: [PATCH] accel/habanalabs: Use common error handling code in hl_cb_alloc()
Date: Wed, 10 Jun 2026 20:35:46 +0200	[thread overview]
Message-ID: <c40e9f00-ac4d-4eb5-bbc4-a6c37bf630b8@web.de> (raw)

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Wed, 10 Jun 2026 20:30:23 +0200

Use an additional label so that a bit of exception handling can be better
reused at the end of this function implementation.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 drivers/accel/habanalabs/common/command_buffer.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/accel/habanalabs/common/command_buffer.c b/drivers/accel/habanalabs/common/command_buffer.c
index e929db8bc023..980c9e4f96c6 100644
--- a/drivers/accel/habanalabs/common/command_buffer.c
+++ b/drivers/accel/habanalabs/common/command_buffer.c
@@ -126,10 +126,8 @@ static struct hl_cb *hl_cb_alloc(struct hl_device *hdev, u32 cb_size,
 
 	if (internal_cb) {
 		p = (void *) gen_pool_alloc(hdev->internal_cb_pool, cb_size);
-		if (!p) {
-			kfree(cb);
-			return NULL;
-		}
+		if (!p)
+			goto free_cb;
 
 		cb_offset = p - hdev->internal_cb_pool_virt_addr;
 		cb->is_internal = true;
@@ -147,14 +145,17 @@ static struct hl_cb *hl_cb_alloc(struct hl_device *hdev, u32 cb_size,
 		dev_err(hdev->dev,
 			"failed to allocate %d of dma memory for CB\n",
 			cb_size);
-		kfree(cb);
-		return NULL;
+		goto free_cb;
 	}
 
 	cb->kernel_address = p;
 	cb->size = cb_size;
 
 	return cb;
+
+free_cb:
+	kfree(cb);
+	return NULL;
 }
 
 struct hl_cb_mmap_mem_alloc_args {
-- 
2.54.0


                 reply	other threads:[~2026-06-10 18:35 UTC|newest]

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