Jan 07 2016

wlcore: fix error handling in wlcore_event_fw_logger 

Author: Andrzej Hajda <a.hajda@samsung.com>

wlcore_read/wlcore_write can return negative values so it should
be assigned to signed variable.

The problem has been detected using proposed semantic patch
scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci [1].

[1]: http://permalink.gmane.org/gmane.linux.kernel/2120705

Fixes: 3719c17e1816 ("wlcore/wl18xx: fw logger over sdio")
Signed-off-by: Andrzej Hajda 
Signed-off-by: Kalle Valo 

---
 drivers/net/wireless/ti/wlcore/event.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
 
diff --git a/drivers/net/wireless/ti/wlcore/event.c b/drivers/net/wireless/ti/wlcore/event.c
index c964054..4b59f67 100644
--- a/drivers/net/wireless/ti/wlcore/event.c
+++ b/drivers/net/wireless/ti/wlcore/event.c
@@ -38,7 +38,7 @@
 
 int wlcore_event_fw_logger(struct wl1271 *wl)
 {
-	u32 ret;
+	int ret;
 	struct fw_logger_information fw_log;
 	u8  *buffer;
 	u32 internal_fw_addrbase = WL18XX_DATA_RAM_BASE_ADDRESS;

qlambert