From: Bongsu Jeon <bongsu.jeon@samsung.com>
Date: Sun, 13 Dec 2020 09:58:50 +0000 (+0900)
Subject: nfc: s3fwrn5: Release the nfc firmware
X-Git-Tag: v4.4.249~49
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8d409b947ba67266d7d641a14c601ca3b2f7a328;p=thirdparty%2Fkernel%2Fstable.git

nfc: s3fwrn5: Release the nfc firmware

[ Upstream commit a4485baefa1efa596702ebffd5a9c760d42b14b5 ]

add the code to release the nfc firmware when the firmware image size is
wrong.

Fixes: c04c674fadeb ("nfc: s3fwrn5: Add driver for Samsung S3FWRN5 NFC Chip")
Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20201213095850.28169-1-bongsu.jeon@samsung.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/nfc/s3fwrn5/firmware.c b/drivers/nfc/s3fwrn5/firmware.c
index 64a90252c57f2..b387845d3c72a 100644
--- a/drivers/nfc/s3fwrn5/firmware.c
+++ b/drivers/nfc/s3fwrn5/firmware.c
@@ -304,8 +304,10 @@ static int s3fwrn5_fw_request_firmware(struct s3fwrn5_fw_info *fw_info)
 	if (ret < 0)
 		return ret;
 
-	if (fw->fw->size < S3FWRN5_FW_IMAGE_HEADER_SIZE)
+	if (fw->fw->size < S3FWRN5_FW_IMAGE_HEADER_SIZE) {
+		release_firmware(fw->fw);
 		return -EINVAL;
+	}
 
 	memcpy(fw->date, fw->fw->data + 0x00, 12);
 	fw->date[12] = '\0';