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author | Dan Carpenter <dan.carpenter@oracle.com> | 2013-11-22 04:56:33 -0300 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-03-31 09:58:12 -0700 |
commit | 5c256d215753d9b26eb1a8553032630d0270a377 (patch) | |
tree | 3dea19e2b5f8c7b6f03ee4ab8a915e2532ec635b | |
parent | 60b35930067dfc0ef4d82b2653a9221b247ce5f1 (diff) | |
download | lwn-5c256d215753d9b26eb1a8553032630d0270a377.tar.gz lwn-5c256d215753d9b26eb1a8553032630d0270a377.zip |
media: dw2102: some missing unlocks on error
commit 324ed533bf0b23c309b805272c4ffcc5d51493a6 upstream.
We recently introduced some new error paths but the unlocks are missing.
Fixes: 0065a79a8698 ('[media] dw2102: Don't use dynamic static allocation')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r-- | drivers/media/usb/dvb-usb/dw2102.c | 52 |
1 files changed, 36 insertions, 16 deletions
diff --git a/drivers/media/usb/dvb-usb/dw2102.c b/drivers/media/usb/dvb-usb/dw2102.c index 71b22f5a05ce..4170a45d17e0 100644 --- a/drivers/media/usb/dvb-usb/dw2102.c +++ b/drivers/media/usb/dvb-usb/dw2102.c @@ -301,6 +301,7 @@ static int dw2102_serit_i2c_transfer(struct i2c_adapter *adap, static int dw2102_earda_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], int num) { struct dvb_usb_device *d = i2c_get_adapdata(adap); + int ret; if (!d) return -ENODEV; @@ -316,7 +317,8 @@ static int dw2102_earda_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg ms if (2 + msg[1].len > sizeof(ibuf)) { warn("i2c rd: len=%d is too big!\n", msg[1].len); - return -EOPNOTSUPP; + ret = -EOPNOTSUPP; + goto unlock; } obuf[0] = msg[0].addr << 1; @@ -340,7 +342,8 @@ static int dw2102_earda_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg ms if (2 + msg[0].len > sizeof(obuf)) { warn("i2c wr: len=%d is too big!\n", msg[1].len); - return -EOPNOTSUPP; + ret = -EOPNOTSUPP; + goto unlock; } obuf[0] = msg[0].addr << 1; @@ -357,7 +360,8 @@ static int dw2102_earda_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg ms if (2 + msg[0].len > sizeof(obuf)) { warn("i2c wr: len=%d is too big!\n", msg[1].len); - return -EOPNOTSUPP; + ret = -EOPNOTSUPP; + goto unlock; } obuf[0] = msg[0].addr << 1; @@ -386,15 +390,17 @@ static int dw2102_earda_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg ms break; } + ret = num; +unlock: mutex_unlock(&d->i2c_mutex); - return num; + return ret; } static int dw2104_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], int num) { struct dvb_usb_device *d = i2c_get_adapdata(adap); - int len, i, j; + int len, i, j, ret; if (!d) return -ENODEV; @@ -430,7 +436,8 @@ static int dw2104_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], i if (2 + msg[j].len > sizeof(ibuf)) { warn("i2c rd: len=%d is too big!\n", msg[j].len); - return -EOPNOTSUPP; + ret = -EOPNOTSUPP; + goto unlock; } dw210x_op_rw(d->udev, 0xc3, @@ -466,7 +473,8 @@ static int dw2104_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], i if (2 + msg[j].len > sizeof(obuf)) { warn("i2c wr: len=%d is too big!\n", msg[j].len); - return -EOPNOTSUPP; + ret = -EOPNOTSUPP; + goto unlock; } obuf[0] = msg[j].addr << 1; @@ -481,15 +489,18 @@ static int dw2104_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], i } } + ret = num; +unlock: mutex_unlock(&d->i2c_mutex); - return num; + return ret; } static int dw3101_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], int num) { struct dvb_usb_device *d = i2c_get_adapdata(adap); + int ret; int i; if (!d) @@ -506,7 +517,8 @@ static int dw3101_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], if (2 + msg[1].len > sizeof(ibuf)) { warn("i2c rd: len=%d is too big!\n", msg[1].len); - return -EOPNOTSUPP; + ret = -EOPNOTSUPP; + goto unlock; } obuf[0] = msg[0].addr << 1; obuf[1] = msg[0].len; @@ -530,7 +542,8 @@ static int dw3101_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], if (2 + msg[0].len > sizeof(obuf)) { warn("i2c wr: len=%d is too big!\n", msg[0].len); - return -EOPNOTSUPP; + ret = -EOPNOTSUPP; + goto unlock; } obuf[0] = msg[0].addr << 1; obuf[1] = msg[0].len; @@ -556,9 +569,11 @@ static int dw3101_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], msg[i].flags == 0 ? ">>>" : "<<<"); debug_dump(msg[i].buf, msg[i].len, deb_xfer); } + ret = num; +unlock: mutex_unlock(&d->i2c_mutex); - return num; + return ret; } static int s6x0_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], @@ -566,7 +581,7 @@ static int s6x0_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], { struct dvb_usb_device *d = i2c_get_adapdata(adap); struct usb_device *udev; - int len, i, j; + int len, i, j, ret; if (!d) return -ENODEV; @@ -618,7 +633,8 @@ static int s6x0_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], if (msg[j].len > sizeof(ibuf)) { warn("i2c rd: len=%d is too big!\n", msg[j].len); - return -EOPNOTSUPP; + ret = -EOPNOTSUPP; + goto unlock; } dw210x_op_rw(d->udev, 0x91, 0, 0, @@ -652,7 +668,8 @@ static int s6x0_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], if (2 + msg[j].len > sizeof(obuf)) { warn("i2c wr: len=%d is too big!\n", msg[j].len); - return -EOPNOTSUPP; + ret = -EOPNOTSUPP; + goto unlock; } obuf[0] = msg[j + 1].len; @@ -671,7 +688,8 @@ static int s6x0_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], if (2 + msg[j].len > sizeof(obuf)) { warn("i2c wr: len=%d is too big!\n", msg[j].len); - return -EOPNOTSUPP; + ret = -EOPNOTSUPP; + goto unlock; } obuf[0] = msg[j].len + 1; obuf[1] = (msg[j].addr << 1); @@ -685,9 +703,11 @@ static int s6x0_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], } } } + ret = num; +unlock: mutex_unlock(&d->i2c_mutex); - return num; + return ret; } static int su3000_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], |