[PATCH] mmc: core: Fix error return code in sd_read_ext_regs()

[Zhen Lei]

Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: c784f92769ae ("mmc: core: Read the SD function extension registers for power management")
Signed-off-by: Zhen Lei <thunder.leizhen@xxxxxxxxxx>
---
 drivers/mmc/core/sd.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index 3662bf5320ce56d..7b64f76f0179ca8 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -1277,6 +1277,7 @@ static int sd_read_ext_regs(struct mmc_card *card)
 	if (rev != 0 || len > 512) {
 		pr_warn("%s: non-supported SD ext reg layout\n",
 			mmc_hostname(card->host));
+		err = -EOPNOTSUPP;
 		goto out;
 	}
 
-- 
2.25.1