From: Dan Carpenter <[email protected]>
[ Upstream commit fea69916360468e364a4988db25a5afa835f3406 ]
If ->hif_read_reg() or ->hif_write_reg() fail then the code unlocks
and keeps executing. It should just return.
Fixes: c5c77ba18ea6 ("staging: wilc1000: Add SDIO/SPI 802.11 driver")
Signed-off-by: Dan Carpenter <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/staging/wilc1000/wilc_wlan.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/staging/wilc1000/wilc_wlan.c
b/drivers/staging/wilc1000/wilc_wlan.c
index c2389695fe20..70b1ab21f8a3 100644
--- a/drivers/staging/wilc1000/wilc_wlan.c
+++ b/drivers/staging/wilc1000/wilc_wlan.c
@@ -1076,13 +1076,17 @@ void wilc_wlan_cleanup(struct net_device *dev)
acquire_bus(wilc, WILC_BUS_ACQUIRE_AND_WAKEUP);
ret = wilc->hif_func->hif_read_reg(wilc, WILC_GP_REG_0, ®);
- if (!ret)
+ if (!ret) {
release_bus(wilc, WILC_BUS_RELEASE_ALLOW_SLEEP);
+ return;
+ }
ret = wilc->hif_func->hif_write_reg(wilc, WILC_GP_REG_0,
(reg | ABORT_INT));
- if (!ret)
+ if (!ret) {
release_bus(wilc, WILC_BUS_RELEASE_ALLOW_SLEEP);
+ return;
+ }
release_bus(wilc, WILC_BUS_RELEASE_ALLOW_SLEEP);
wilc->hif_func->hif_deinit(NULL);
--
2.20.1
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