[PATCH] mmc: sdio: get seg_size after the check of card

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When using mmc_io_rw_extended. it's intent to avoid
null pointer of card but actually it didn't prevent
it as the seg_size already use the card. So we need
to move this after the check.

Signed-off-by: Shawn Lin <shawn.lin@xxxxxxxxxxxxxx>
---

 drivers/mmc/core/sdio_ops.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/core/sdio_ops.c b/drivers/mmc/core/sdio_ops.c
index 34f6e80..15a06b8 100644
--- a/drivers/mmc/core/sdio_ops.c
+++ b/drivers/mmc/core/sdio_ops.c
@@ -127,7 +127,7 @@ int mmc_io_rw_extended(struct mmc_card *card, int write, unsigned fn,
 	struct scatterlist sg, *sg_ptr;
 	struct sg_table sgtable;
 	unsigned int nents, left_size, i;
-	unsigned int seg_size = card->host->max_seg_size;
+	unsigned int seg_size;
 
 	BUG_ON(!card);
 	BUG_ON(fn > 7);
@@ -137,6 +137,8 @@ int mmc_io_rw_extended(struct mmc_card *card, int write, unsigned fn,
 	if (addr & ~0x1FFFF)
 		return -EINVAL;
 
+	seg_size = card->host->max_seg_size;
+
 	mrq.cmd = &cmd;
 	mrq.data = &data;
 
-- 
2.3.7


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