staging: wilc1000: avoid double unlocking of 'wilc->hif_cs' mutex

Message ID 20200221170120.15739-1-ajay.kathat@microchip.com
State New
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Series
  • staging: wilc1000: avoid double unlocking of 'wilc->hif_cs' mutex
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Commit Message

Ajay Singh Feb. 21, 2020, 11:30 a.m.
From: Ajay Singh <ajay.kathat@microchip.com>

Possible double unlocking of 'wilc->hif_cs' mutex was identified by
smatch [1]. Removed the extra call to release_bus() in
wilc_wlan_handle_txq() which was missed in earlier commit fdc2ac1aafc6
("staging: wilc1000: support suspend/resume functionality").

[1]. https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org/thread/NOEVW7C3GV74EWXJO3XX6VT2NKVB2HMT/

Reported-by: kbuild test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Ajay Singh <ajay.kathat@microchip.com>
---
 drivers/staging/wilc1000/wlan.c | 1 -
 1 file changed, 1 deletion(-)

Patch

diff --git a/drivers/staging/wilc1000/wlan.c b/drivers/staging/wilc1000/wlan.c
index f633c6b9f0a9..3aeca882f431 100644
--- a/drivers/staging/wilc1000/wlan.c
+++ b/drivers/staging/wilc1000/wlan.c
@@ -575,7 +575,6 @@  int wilc_wlan_handle_txq(struct wilc *wilc, u32 *txq_count)
 				entries = FIELD_GET(WILC_VMM_ENTRY_COUNT, reg);
 				break;
 			}
-			release_bus(wilc, WILC_BUS_RELEASE_ALLOW_SLEEP);
 		} while (--timeout);
 		if (timeout <= 0) {
 			ret = func->hif_write_reg(wilc, WILC_HOST_VMM_CTL, 0x0);