[PATCH v4 8/8] staging: r8188eu: check firmware header existence before access

[Michael Straube <straube.linux@gmail.com>]

We should access the fields of fwhdr only if the check for firmware
header existence is true. Move the affected code into the if block
that checks firmware header existence.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
---
v4:
- no changes

v3:
- no real changes,
  just the pr_info() -> pr_info_once() from patch 7/8 is different

v2:
- no changes

 drivers/staging/r8188eu/core/rtw_fw.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/r8188eu/core/rtw_fw.c b/drivers/staging/r8188eu/core/rtw_fw.c
index 7c0653bb3bbc..bf077876ed3d 100644
--- a/drivers/staging/r8188eu/core/rtw_fw.c
+++ b/drivers/staging/r8188eu/core/rtw_fw.c
@@ -256,14 +256,13 @@ int rtl8188e_firmware_download(struct adapter *padapter)
 	fw_data = dvobj->firmware.data;
 	fw_size = dvobj->firmware.size;
 
-	/*  To Check Fw header. Added by tynli. 2009.12.04. */
 	fwhdr = (struct rt_firmware_hdr *)dvobj->firmware.data;
 
-	pr_info_once("%sFirmware Version %d, SubVersion %d, Signature 0x%x\n",
-		     DRIVER_PREFIX, le16_to_cpu(fwhdr->version), fwhdr->subversion,
-		     le16_to_cpu(fwhdr->signature));
-
 	if (IS_FW_HEADER_EXIST(fwhdr)) {
+		pr_info_once("%sFirmware Version %d, SubVersion %d, Signature 0x%x\n",
+			     DRIVER_PREFIX, le16_to_cpu(fwhdr->version), fwhdr->subversion,
+			     le16_to_cpu(fwhdr->signature));
+
 		fw_data = fw_data + sizeof(struct rt_firmware_hdr);
 		fw_size = fw_size - sizeof(struct rt_firmware_hdr);
 	}
-- 
2.35.1