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Subject[PATCH 1/5] USB: atm/cxacru, fix lock imbalance
Date
We do not hold mutex in one place in cxacru_cm, but unlock it on fail path.
Fix this.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Simon Arlott <cxacru@fire.lp0.eu>
---
drivers/usb/atm/cxacru.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c
index 5ed4ae0..6789089 100644
--- a/drivers/usb/atm/cxacru.c
+++ b/drivers/usb/atm/cxacru.c
@@ -485,7 +485,7 @@ static int cxacru_cm(struct cxacru_data *instance, enum cxacru_cm_request cm,
usb_err(instance->usbatm, "requested transfer size too large (%d, %d)\n",
wbuflen, rbuflen);
ret = -ENOMEM;
- goto fail;
+ goto err;
}

mutex_lock(&instance->cm_serialize);
@@ -565,6 +565,7 @@ static int cxacru_cm(struct cxacru_data *instance, enum cxacru_cm_request cm,
dbg("cm %#x", cm);
fail:
mutex_unlock(&instance->cm_serialize);
+err:
return ret;
}

--
1.6.2
caught by stanse

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