sdio: handle null tuples

Signed-off-by: N Pierre Ossman <drzeus@drzeus.cx>

sdio: handle null tuples
Signed-off-by: N Pierre Ossman <drzeus@drzeus.cx>
c8d718f1 · Pierre Ossman · 0d6132ba · c8d718f1
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drivers/mmc/core/sdio_cis.c drivers/mmc/core/sdio_cis.c +4 -0

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--- a/drivers/mmc/core/sdio_cis.c
+++ b/drivers/mmc/core/sdio_cis.c
@@ -223,6 +223,10 @@ static int sdio_read_cis(struct mmc_card *card, struct sdio_func *func)
 		if (tpl_code == 0xff)
 			break;

+		/* null entries have no link field or data */
+		if (tpl_code == 0x00)
+			continue;
+
 		ret = mmc_io_rw_direct(card, 0, 0, ptr++, 0, &tpl_link);
 		if (ret)
 			break;