On Fri, Aug 30, 2013 at 7:10 AM, Frank Rowand <frank.row...@sonymobile.com> wrote:
> Avoid calling desc_to_gpio() if desc->chip is NULL, as this will > cause a kernel panic. > > In the code above the calls, there is a test for !chip, which > comes to the 'fail' label if true. In this case, the code > panics, since desc_to_gpio() uses desc->chip to look up the > gpio number. > > An RFC patch that explained the cause of one example of panic when > desc->chip is NULL and fixed that example > (http://lkml.indiana.edu/hypermail/linux/kernel/1308.3/01473.html) > was accepted. This patch fixes the remaining locations which have > the same problem. > > Signed-off-by: Frank Rowand <frank.row...@sonymobile.com> Hm it appears Alexandre has another idea on how it should be fixed, but he was in a hurry and didn't provide a proper patch. Let me cook something up so we can see of we can get this right. Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
