Messages in this thread | | | Date | Sat, 02 Sep 2023 08:00:10 +0200 | From | Takashi Iwai <> | Subject | Re: [PATCH v2 02/25] ALSA: pcm: Add copy ops with iov_iter |
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On Sat, 02 Sep 2023 07:30:44 +0200, Al Viro wrote: > > On Tue, Aug 15, 2023 at 09:01:13PM +0200, Takashi Iwai wrote: > > > - if (copy_from_user(get_dma_ptr(substream->runtime, channel, hwoff), > > - (void __user *)buf, bytes)) > > + if (!copy_from_iter(get_dma_ptr(substream->runtime, channel, hwoff), > > + bytes, iter)) > > The former is "if not everything got copied", the latter - "if nothing got > copied"; the same goes for other places like that.
Thanks, yes, this should be if (copy_from_iter(...) != bytes)
Other places have been already corrected in v2 patchset, but this place was overseen. Will fix it.
Takashi
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