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

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 cc715cf10e8e
("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>
Link: https://lore.kernel.org/r/20200221170120.15739-1-ajay.kathat@microchip.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/wilc1000/wlan.c b/drivers/staging/wilc1000/wlan.c
index f633c6b9f0a9b437811322b45442e3db78296f99..3aeca882f431c0655e0a34fab200eb634eee97f0 100644 (file)
--- 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);