omap_hsmmc: Do not expect cmd/data to be non-null when CC/TC occurs
With spurious interrupt cmd can be null even when we have CC
set in irq status.
Fixes: NB#106295 - prevent potential kernel crash in the MMC driver
Signed-off-by: Jarkko Lavinen <jarkko.lavinen@nokia.com>
Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index d765df2..e62a22a 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -493,7 +493,7 @@
/* Flush posted write */
OMAP_HSMMC_READ(host->base, STAT);
- if (end_cmd || (status & CC))
+ if (end_cmd || ((status & CC) && host->cmd))
mmc_omap_cmd_done(host, host->cmd);
if (end_trans || (status & TC))
mmc_omap_xfer_done(host, data);