omap: iovmm: Add missing mutex_unlock

I was using Coccinelle with the mutex_unlock semantic patch, and it
unconvered this problem. It appears to be a valid missing unlock issue.
This change should correct it by moving the unlock below the label.

This patch is against the mainline kernel.

Cc: Julia Lawall <[email protected]>
Cc: Hiroshi DOYU <[email protected]>
Signed-off-by: Daniel Walker <[email protected]>
Signed-off-by: Kevin Hilman <[email protected]>
Signed-off-by: Tony Lindgren <[email protected]>

diff --git a/arch/arm/plat-omap/iovmm.c b/arch/arm/plat-omap/iovmm.c
index 0e5573d5bb573a1502d669fd7d9d508d2386222d..dc3fac3dd0eac8c40787ea8e3006e6a59ce19e80 100644 (file)
--- a/arch/arm/plat-omap/iovmm.c
+++ b/arch/arm/plat-omap/iovmm.c
@@ -363,8 +363,9 @@ void *da_to_va(struct iommu *obj, u32 da)
                goto out;
        }
        va = area->va;
-       mutex_unlock(&obj->mmap_lock);
 out:
+       mutex_unlock(&obj->mmap_lock);
+
        return va;
 }
 EXPORT_SYMBOL_GPL(da_to_va);