Messages in this thread | | | From | Hannes Hering <> | Subject | Re: + ehea-fix-dlpar-memory-handling.patch added to -mm tree | Date | Tue, 9 Sep 2008 09:58:47 +0200 |
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Hello,
please consider the ehea-fix-dlpar-memory-handling.patch as critical bug fix, as it fixes a potential firmware error causing the driver to get inoperable when system memory is sparse. Therefore please include this fix into 2.6.27.
Regards
Hannes
On Tuesday 09 September 2008 00:25:56 you wrote: > > The patch titled > ehea: fix DLPAR memory handling > has been added to the -mm tree. Its filename is > ehea-fix-dlpar-memory-handling.patch > > Before you just go and hit "reply", please: > a) Consider who else should be cc'ed > b) Prefer to cc a suitable mailing list as well > c) Ideally: find the original patch on the mailing list and do a > reply-to-all to that, adding suitable additional cc's > > *** Remember to use Documentation/SubmitChecklist when testing your code *** > > See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find > out what to do about this > > The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ > > ------------------------------------------------------ > Subject: ehea: fix DLPAR memory handling > From: Hannes Hering <hannes.hering@gmx.de> > > The ehea busmap must be allocated only once in the first of many calls of the > ehea_create_busmap_callback. > > Signed-off-by: Hannes Hering <hering2@de.ibm.com> > Signed-off-by: Andrew Morton <akpm@linux-foundation.org> > --- > > drivers/net/ehea/ehea_qmr.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff -puN drivers/net/ehea/ehea_qmr.c~ehea-fix-dlpar-memory-handling drivers/net/ehea/ehea_qmr.c > --- a/drivers/net/ehea/ehea_qmr.c~ehea-fix-dlpar-memory-handling > +++ a/drivers/net/ehea/ehea_qmr.c > @@ -595,7 +595,8 @@ static int ehea_create_busmap_callback(u > end_section = start_section + ((nr_pages * PAGE_SIZE) / EHEA_SECTSIZE); > mr_len = *(unsigned long *)arg; > > - ehea_bmap = kzalloc(sizeof(struct ehea_bmap), GFP_KERNEL); > + if (!ehea_bmap) > + ehea_bmap = kzalloc(sizeof(struct ehea_bmap), GFP_KERNEL); > if (!ehea_bmap) > return -ENOMEM; > > _ > > Patches currently in -mm which might be from hannes.hering@gmx.de are > > ehea-fix-dlpar-memory-handling.patch > ehea-enable-dlpar-memory-remove.patch >
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