accessing RXBUF list in ath_rx_cleanup may cause panic if
ath_descdma_setup fails even before RXBUF list is initialized.
Signee-off-by: Senthil Balasubramanian <senthilkumar@xxxxxxxxxxx>
---
drivers/net/wireless/ath9k/main.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c
index 4bc43db..7d9c060 100644
--- a/drivers/net/wireless/ath9k/main.c
+++ b/drivers/net/wireless/ath9k/main.c
@@ -1773,6 +1773,7 @@ int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd,
DPRINTF(sc, ATH_DBG_CONFIG, "%s DMA: %u buffers %u desc/buf\n",
name, nbuf, ndesc);
+ INIT_LIST_HEAD(head);
/* ath_desc must be a multiple of DWORDs */
if ((sizeof(struct ath_desc) % 4) != 0) {
DPRINTF(sc, ATH_DBG_FATAL, "ath_desc not DWORD aligned\n");
@@ -1823,7 +1824,6 @@ int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd,
}
dd->dd_bufptr = bf;
- INIT_LIST_HEAD(head);
for (i = 0; i < nbuf; i++, bf++, ds += ndesc) {
bf->bf_desc = ds;
bf->bf_daddr = DS2PHYS(dd, ds);
--
1.6.0.4
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