[RESEND PATCH v1] mmc: mediatek: free the ext_csd when mmc_get_ext_csd success

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If mmc_get_ext_csd success, the ext_csd are not freed.
Add the missing kfree() calls.

Signed-off-by: Wenbin Mei <wenbin.mei@xxxxxxxxxxxx>
Fixes: c4ac38c6539b ("mmc: mtk-sd: Add HS400 online tuning support")
Cc: stable@xxxxxxxxxxxxxxx
---
 drivers/mmc/host/mtk-sd.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c
index 943940b44e83..632775217d35 100644
--- a/drivers/mmc/host/mtk-sd.c
+++ b/drivers/mmc/host/mtk-sd.c
@@ -2291,8 +2291,10 @@ static int msdc_execute_hs400_tuning(struct mmc_host *mmc, struct mmc_card *card
 			sdr_set_field(host->base + PAD_DS_TUNE,
 				      PAD_DS_TUNE_DLY1, i);
 		ret = mmc_get_ext_csd(card, &ext_csd);
-		if (!ret)
+		if (!ret) {
 			result_dly1 |= (1 << i);
+			kfree(ext_csd);
+		}
 	}
 	host->hs400_tuning = false;
 
-- 
2.25.1




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