wusb: release mutex in the error path of whci-hcd's whc_do_gencmd()

Signed-off-by: David Vrabel <david.vrabel@csr.com>

1 files changed, 5 insertions, 3 deletions

diff --git a/drivers/usb/host/whci/hw.c b/drivers/usb/host/whci/hw.c
index ac86e59c1225..d498e7203217 100644
--- a/drivers/usb/host/whci/hw.c
+++ b/drivers/usb/host/whci/hw.c
@@ -50,6 +50,7 @@ int whc_do_gencmd(struct whc *whc, u32 cmd, u32 params, void *addr, size_t len)
         unsigned long flags;
         dma_addr_t dma_addr;
         int t;
+        int ret = 0;
 
         mutex_lock(&whc->mutex);
 
@@ -61,7 +62,8 @@ int whc_do_gencmd(struct whc *whc, u32 cmd, u32 params, void *addr, size_t len)
                 dev_err(&whc->umc->dev, "generic command timeout (%04x/%04x)\n",
                         le_readl(whc->base + WUSBGENCMDSTS),
                         le_readl(whc->base + WUSBGENCMDPARAMS));
-                return -ETIMEDOUT;
+                ret = -ETIMEDOUT;
+                goto out;
         }
 
         if (addr) {
@@ -80,8 +82,8 @@ int whc_do_gencmd(struct whc *whc, u32 cmd, u32 params, void *addr, size_t len)
                   whc->base + WUSBGENCMDSTS);
 
         spin_unlock_irqrestore(&whc->lock, flags);
-
+out:
         mutex_unlock(&whc->mutex);
 
-        return 0;
+        return ret;
 }