Messages in this thread | | | From | Alistair John Strachan <> | Subject | Re: [PATCH 09/14] Big kfree NULL check cleanup - misc remaining drivers | Date | Thu, 13 Oct 2005 21:30:18 +0100 |
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On Thursday 13 October 2005 21:01, you wrote: > > From: Jesper Juhl [mailto:jesper.juhl@gmail.com] > > This is the remaining misc drivers/ part of the big kfree > > cleanup patch. > > > > Remove pointless checks for NULL prior to calling kfree() in > > misc files in drivers/. > > > > > > --- linux-2.6.14-rc4-orig/drivers/block/cciss.c > > 2005-10-11 22:41:05.000000000 +0200 > > +++ linux-2.6.14-rc4/drivers/block/cciss.c 2005-10-12 > > 17:43:18.000000000 +0200 > > @@ -1096,14 +1096,11 @@ static int cciss_ioctl(struct inode *ino > > cleanup1: > > if (buff) { > > for(i=0; i<sg_used; i++) > > - if(buff[i] != NULL) > > - kfree(buff[i]); > > I'm not sure I agree that these are pointless checks. They're not in the > main code path so nothing is lost by checking first. What if the pointer > is NULL???? >
kfree() handles a NULL argument gracefully. Jesper's making these cleanups to eliminate the redundant checking.
-- Cheers, Alistair.
'No sense being pessimistic, it probably wouldn't work anyway.' Third year Computer Science undergraduate. 1F2 55 South Clerk Street, Edinburgh, UK. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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