misc: tifm: fix possible memory leak in tifm_7xx1_switch_media()
If device_register() returns error in tifm_7xx1_switch_media(),
name of kobject which is allocated in dev_set_name() called in device_add()
is leaked.
Never directly free @dev after calling device_register(), even
if it returned an error! Always use put_device() to give up the
reference initialized.
Fixes: 2428a8fe22
("tifm: move common device management tasks from tifm_7xx1 to tifm_core")
Signed-off-by: ruanjinjie <ruanjinjie@huawei.com>
Link: https://lore.kernel.org/r/20221117064725.3478402-1-ruanjinjie@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
1dbb4f0235
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@ -190,7 +190,7 @@ static void tifm_7xx1_switch_media(struct work_struct *work)
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spin_unlock_irqrestore(&fm->lock, flags);
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}
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if (sock)
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tifm_free_device(&sock->dev);
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put_device(&sock->dev);
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}
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spin_lock_irqsave(&fm->lock, flags);
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}
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