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 <diand...@chromium.org>
---
drivers/mmc/host/dw_mmc.c | 4 ++++
1 file changed, 4 insertions(+)
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));
--
2.2.0.rc0.207.ga3a616c
--
To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
