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-rw-r--r--drivers/net/wireless/ath/ath9k/ar9003_mci.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mci.c b/drivers/net/wireless/ath/ath9k/ar9003_mci.c
index ff53091ea6df..ea49d6198d86 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_mci.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_mci.c
@@ -1321,6 +1321,10 @@ u32 ar9003_mci_get_next_gpm_offset(struct ath_hw *ah, bool first, u32 *more)
if (first) {
gpm_ptr = MS(REG_READ(ah, AR_MCI_GPM_1), AR_MCI_GPM_WRITE_PTR);
+
+ if (gpm_ptr >= mci->gpm_len)
+ gpm_ptr = 0;
+
mci->gpm_idx = gpm_ptr;
return gpm_ptr;
}
@@ -1365,6 +1369,10 @@ u32 ar9003_mci_get_next_gpm_offset(struct ath_hw *ah, bool first, u32 *more)
more_gpm = MCI_GPM_NOMORE;
temp_index = mci->gpm_idx;
+
+ if (temp_index >= mci->gpm_len)
+ temp_index = 0;
+
mci->gpm_idx++;
if (mci->gpm_idx >= mci->gpm_len)