ath6kl: Fix ath6kl_bmi_read_hi32 macro

tmp may be used uninitialized if ath6kl_bmi_read() returns an error.

Signed-off-by: Frederic Danis <frederic.danis@linux.intel.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

2 files changed, 12 insertions, 3 deletions

diff --git a/drivers/net/wireless/ath/ath6kl/bmi.h b/drivers/net/wireless/ath/ath6kl/bmi.h
index 18fdd69e1f71..397a52f2628b 100644
--- a/drivers/net/wireless/ath/ath6kl/bmi.h
+++ b/drivers/net/wireless/ath/ath6kl/bmi.h
@@ -242,7 +242,8 @@ struct ath6kl_bmi_target_info {
                 (void) (check_type == val);                             \
                 addr = ath6kl_get_hi_item_addr(ar, HI_ITEM(item));      \
                 ret = ath6kl_bmi_read(ar, addr, (u8 *) &tmp, 4);        \
-                *val = le32_to_cpu(tmp);                                \
+                if (!ret)                                               \
+                        *val = le32_to_cpu(tmp);                        \
                 ret;                                                    \
         })
 
diff --git a/drivers/net/wireless/ath/ath6kl/init.c b/drivers/net/wireless/ath/ath6kl/init.c
index d5ef211f261c..6e1e6995a634 100644
--- a/drivers/net/wireless/ath/ath6kl/init.c
+++ b/drivers/net/wireless/ath/ath6kl/init.c
@@ -1161,11 +1161,19 @@ static int ath6kl_upload_board_file(struct ath6kl *ar)
                 ath6kl_bmi_write_hi32(ar, hi_board_data,
                                       board_address);
         } else {
-                ath6kl_bmi_read_hi32(ar, hi_board_data, &board_address);
+                ret = ath6kl_bmi_read_hi32(ar, hi_board_data, &board_address);
+                if (ret) {
+                        ath6kl_err("Failed to get board file target address.\n");
+                        return ret;
+                }
         }
 
         /* determine where in target ram to write extended board data */
-        ath6kl_bmi_read_hi32(ar, hi_board_ext_data, &board_ext_address);
+        ret = ath6kl_bmi_read_hi32(ar, hi_board_ext_data, &board_ext_address);
+        if (ret) {
+                ath6kl_err("Failed to get extended board file target address.\n");
+                return ret;
+        }
 
         if (ar->target_type == TARGET_TYPE_AR6003 &&
             board_ext_address == 0) {