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Groups > linux.kernel > #1248561
| From | Mark Brown <broonie@kernel.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] spi: Setup the master controller driver before setting the chipselect |
| Date | 2015-10-16 12:30 +0200 |
| Message-ID | <qkaqS-3p4-25@gated-at.bofh.it> (permalink) |
| References | <qjXN0-1dR-19@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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On Thu, Oct 15, 2015 at 03:51:45PM -0500, Franklin S Cooper Jr wrote: > Some devices depend on the master controller driver setup function being > called before calling any chipselect functions. > > Insure that this is done otherwise uninitialized structures may be > accessed causing a kernel panic. I think this is a sensible change but can we please have a better changelog - why is this the best thing to do rather than fixing the driver to not crash? There are a bunch of good reasons to do the master setup before asserting chip select but a driver crashing isn't one of them, it's not clear that this isn't a bug in the driver.
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[PATCH] spi: Setup the master controller driver before setting the chipselect Franklin S Cooper Jr <fcooper@ti.com> - 2015-10-15 23:00 +0200
Re: [PATCH] spi: Setup the master controller driver before setting the chipselect Mark Brown <broonie@kernel.org> - 2015-10-16 12:30 +0200
Re: [PATCH] spi: Setup the master controller driver before setting the chipselect "Franklin S Cooper Jr." <fcooper@ti.com> - 2015-10-16 16:30 +0200
Re: [PATCH] spi: Setup the master controller driver before setting the chipselect "Franklin S Cooper Jr." <fcooper@ti.com> - 2015-10-16 16:50 +0200
Re: [PATCH] spi: Setup the master controller driver before setting the chipselect Mark Brown <broonie@kernel.org> - 2015-10-16 16:50 +0200
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