Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
usb: fhci: use kzalloc_flex for priv struct
Convert kzalloc_obj(s) to kzalloc_flex to save an allocation.
Add __counted_by to get extra runtime analysis. Move counting variable
assignment immediately after allocation as required by __counted_by.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Link: https://patch.msgid.link/20260313003456.124270-1-rosenp@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
authored by
Rosen Penev
and committed by
Greg Kroah-Hartman
03cd4fd6
341434a4
+5
-13
+3
-12
drivers/usb/host/fhci-hcd.c
+3
-12
drivers/usb/host/fhci-hcd.c
···
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}
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/* allocate the private part of the URB */
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-
urb_priv = kzalloc_obj(*urb_priv, mem_flags);
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+
urb_priv = kzalloc_flex(*urb_priv, tds, size, mem_flags);
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if (!urb_priv)
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return -ENOMEM;
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-
/* allocate the private part of the URB */
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-
urb_priv->tds = kzalloc_objs(*urb_priv->tds, size, mem_flags);
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-
if (!urb_priv->tds) {
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-
kfree(urb_priv);
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-
return -ENOMEM;
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-
}
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+
urb_priv->num_of_tds = size;
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spin_lock_irqsave(&fhci->lock, flags);
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···
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goto err;
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/* fill the private part of the URB */
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-
urb_priv->num_of_tds = size;
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-
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urb->status = -EINPROGRESS;
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urb->actual_length = 0;
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urb->error_count = 0;
···
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fhci_queue_urb(fhci, urb);
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err:
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-
if (ret) {
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-
kfree(urb_priv->tds);
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+
if (ret)
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kfree(urb_priv);
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-
}
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spin_unlock_irqrestore(&fhci->lock, flags);
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return ret;
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}