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| author | Julia Lawall <julia@diku.dk> | 2010-03-29 05:33:34 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2010-04-07 18:00:43 +1000 |
| commit | f6d8c8bb1d360272d795927d39f3d2c5934e77d9 (patch) | |
| tree | da15e76aa8e9135fed852f26a7d0161a73c7f202 | |
| parent | 43caa61f154da85a620965f3f61c2f45366d8dc7 (diff) | |
| download | linux-stable-f6d8c8bb1d360272d795927d39f3d2c5934e77d9.tar.gz linux-stable-f6d8c8bb1d360272d795927d39f3d2c5934e77d9.tar.bz2 linux-stable-f6d8c8bb1d360272d795927d39f3d2c5934e77d9.zip | |
powerpc/vio: Add missing unlock in error path
Add an unlock before exiting the function.
A simplified version of the semantic patch that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@r exists@
expression E1;
identifier f;
@@
f (...) { <+...
* spin_lock_irq (E1,...);
... when != E1
* return ...;
...+> }
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| -rw-r--r-- | arch/powerpc/kernel/vio.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c index 2f57956714bd..2a3428bef83a 100644 --- a/arch/powerpc/kernel/vio.c +++ b/arch/powerpc/kernel/vio.c @@ -645,8 +645,10 @@ void vio_cmo_set_dev_desired(struct vio_dev *viodev, size_t desired) found = 1; break; } - if (!found) + if (!found) { + spin_unlock_irqrestore(&vio_cmo.lock, flags); return; + } /* Increase/decrease in desired device entitlement */ if (desired >= viodev->cmo.desired) { |