Hi Daniel, > > On 29 May 2011 15:26, Daniel Drake <dsd <at> laptop.org> wrote: > > Hi, > > > > The following commit in 2.6.39 causes instant death for libertas_sdio > > when it receives its first interrupt during initialization: > > > > commit 06e8935febe687e2a561707d4c7ca4245d261dbe > > The crash happens on this line of code in if_sdio_interrupt: > > cause = sdio_readb(card->func, IF_SDIO_H_INT_STATUS, &ret); > > card is NULL here Thanks for you detailed report. It fails due to sdio_get_drvdata() returns NULL. I am thinking of if the timing has changed due to this "single irq" patch or if the functionality is broken. To answer that I have a question on the if_sdio.c in libertas. if_sdio.c sdio_claim_host(); sdio_claim_irq() ... sdio_release_host() sdio_set_drvdata(func, card) Just a sanity question, can the interrupt occur before sdio_set_drvdata()? Do you get the same error if it looks like this. if_sdio.c sdio_claim_host(); sdio_set_drvdata(func, card) sdio_claim_irq() ... sdio_release_host() Thanks, Per -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
