NFC: trf7970a: Unlock mutex before exiting _trf7970a_tg_listen()
The recently added _trf7970a_tg_listen() routine
has some return paths that don't unlock the mutex
that is locked when the routine is entered. Fix
this by always unlocking the mutex before returning.
Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/nfc/trf7970a.c b/drivers/nfc/trf7970a.c
index 0fe7b95..d2ccd28 100644
--- a/drivers/nfc/trf7970a.c
+++ b/drivers/nfc/trf7970a.c
@@ -1728,22 +1728,22 @@
TRF7970A_RX_SPECIAL_SETTINGS_C424 |
TRF7970A_RX_SPECIAL_SETTINGS_C212);
if (ret)
- return ret;
+ goto out_err;
ret = trf7970a_write(trf, TRF7970A_REG_IO_CTRL,
TRF7970A_REG_IO_CTRL_VRS(0x1));
if (ret)
- return ret;
+ goto out_err;
ret = trf7970a_write(trf, TRF7970A_NFC_LOW_FIELD_LEVEL,
TRF7970A_NFC_LOW_FIELD_LEVEL_RFDET(0x3));
if (ret)
- return ret;
+ goto out_err;
ret = trf7970a_write(trf, TRF7970A_NFC_TARGET_LEVEL,
TRF7970A_NFC_TARGET_LEVEL_RFDET(0x7));
if (ret)
- return ret;
+ goto out_err;
trf->ddev = ddev;
trf->cb = cb;