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| author | Julia Lawall <julia@diku.dk> | 2008-07-21 09:58:11 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2008-07-29 16:55:05 -0400 |
| commit | 80c42affad970c8ebc5ebec4681aef8dadf21c32 (patch) | |
| tree | fa617323426286036bc51459f3d4c30747e24143 | |
| parent | e7087a828f8714e464fff18d93618727530dfd89 (diff) | |
| download | linux-80c42affad970c8ebc5ebec4681aef8dadf21c32.tar.gz linux-80c42affad970c8ebc5ebec4681aef8dadf21c32.tar.bz2 linux-80c42affad970c8ebc5ebec4681aef8dadf21c32.zip | |
drivers/net/wireless/ipw2100.c: Release mutex in error handling code
The mutex is released on a successful return, so it would seem that it
should be released on an error return as well.
The semantic patch finds this problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@@
expression l;
@@
mutex_lock(l);
... when != mutex_unlock(l)
when any
when strict
(
if (...) { ... when != mutex_unlock(l)
+ mutex_unlock(l);
return ...;
}
|
mutex_unlock(l);
)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | drivers/net/wireless/ipw2100.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/wireless/ipw2100.c b/drivers/net/wireless/ipw2100.c index 5bf9e00b070c..c6f886ec08a3 100644 --- a/drivers/net/wireless/ipw2100.c +++ b/drivers/net/wireless/ipw2100.c @@ -6442,6 +6442,7 @@ static int ipw2100_resume(struct pci_dev *pci_dev) if (err) { printk(KERN_ERR "%s: pci_enable_device failed on resume\n", dev->name); + mutex_unlock(&priv->action_mutex); return err; } pci_restore_state(pci_dev); @@ -7146,7 +7147,7 @@ static int ipw2100_wx_get_rate(struct net_device *dev, err = ipw2100_get_ordinal(priv, IPW_ORD_CURRENT_TX_RATE, &val, &len); if (err) { IPW_DEBUG_WX("failed querying ordinals.\n"); - return err; + goto done; } switch (val & TX_RATE_MASK) { |