linux-kernel - [PATCH] habanalabs: use strscpy instead of sprintf and strlcpy

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Message-Id: <20210403173027.8528-1-ogabbay@kernel.org>
Date:   Sat,  3 Apr 2021 20:30:27 +0300
From:   Oded Gabbay <ogabbay@...nel.org>
To:     linux-kernel@...r.kernel.org
Subject: [PATCH] habanalabs: use strscpy instead of sprintf and strlcpy

Prefer the use of strscpy when copying the ASIC name into a char array,
to prevent accidentally exceeding the array's length.
In addition, strlcpy is frowned upon so replace it.

Signed-off-by: Oded Gabbay <ogabbay@...nel.org>
---
 drivers/misc/habanalabs/common/device.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/misc/habanalabs/common/device.c b/drivers/misc/habanalabs/common/device.c
index e64c60d48d42..2ed4f2bedc08 100644
--- a/drivers/misc/habanalabs/common/device.c
+++ b/drivers/misc/habanalabs/common/device.c
@@ -321,11 +321,11 @@ static int device_early_init(struct hl_device *hdev)
 	switch (hdev->asic_type) {
 	case ASIC_GOYA:
 		goya_set_asic_funcs(hdev);
-		strlcpy(hdev->asic_name, "GOYA", sizeof(hdev->asic_name));
+		strscpy(hdev->asic_name, "GOYA", sizeof(hdev->asic_name));
 		break;
 	case ASIC_GAUDI:
 		gaudi_set_asic_funcs(hdev);
-		sprintf(hdev->asic_name, "GAUDI");
+		strscpy(hdev->asic_name, "GAUDI", sizeof(hdev->asic_name));
 		break;
 	default:
 		dev_err(hdev->dev, "Unrecognized ASIC type %d\n",
-- 
2.25.1