| Message ID | 1424887912-20015-2-git-send-email-dianders@chromium.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hello Doug, On 02/25/2015 07:11 PM, Doug Anderson wrote: > It's unlikely that this is really needed on any single-slot systems > where we disable card detects until the end of probe, but it still > seems safer to check to make sure that a slot has been initted before > we try to dereference it to find the SDIO interrupt mask. > > Signed-off-by: Doug Anderson <dianders@chromium.org> On an Exynos5250 Snow, Exynos5420 Peach Pit and Exynos5800 Peach Pi: Tested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Best regards, Javier -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index 8df2a92..1c909ad 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -2156,6 +2156,10 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id) /* Handle SDIO Interrupts */ for (i = 0; i < host->num_slots; i++) { struct dw_mci_slot *slot = host->slot[i]; + + if (!slot) + continue; + if (pending & SDMMC_INT_SDIO(slot->sdio_id)) { mci_writel(host, RINTSTS, SDMMC_INT_SDIO(slot->sdio_id));
It's unlikely that this is really needed on any single-slot systems where we disable card detects until the end of probe, but it still seems safer to check to make sure that a slot has been initted before we try to dereference it to find the SDIO interrupt mask. Signed-off-by: Doug Anderson <dianders@chromium.org> --- drivers/mmc/host/dw_mmc.c | 4 ++++ 1 file changed, 4 insertions(+)