[PATCH net] et131x: propagate EEPROM readiness errors

[Avi Weiss <thnkslprpt@gmail.com>]

eeprom_wait_ready() returns a negative error when the LBCIF status
cannot be read or the device does not become ready for some other
reason.

eeprom_write() propagates this error before starting a write, but
currently returns 0 when the same readiness check fails after the
write begins.

This behavior was introduced when the EEPROM code was refactored to
use Linux error-return conventions (from 0 = failure to 0 = success).

Return the error so callers do not treat a failed EEPROM write as
successful and the function contract is maintained.

Fixes: b802ce0c705f ("Staging: et131x: tidy eeprom code up")
Signed-off-by: Avi Weiss <thnkslprpt@gmail.com>
---
 drivers/net/ethernet/agere/et131x.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/agere/et131x.c b/drivers/net/ethernet/agere/et131x.c
index 1b465a167672..4b6a579e9c66 100644
--- a/drivers/net/ethernet/agere/et131x.c
+++ b/drivers/net/ethernet/agere/et131x.c
@@ -567,7 +567,7 @@ static int eeprom_write(struct et131x_adapter *adapter, u32 addr, u8 data)
 		 */
 		err = eeprom_wait_ready(pdev, &status);
 		if (err < 0)
-			return 0;
+			return err;
 
 		/* Check bit 3 of the LBCIF Status Register.  If  equal to 1,
 		 * an error has occurred.Don't break here if we are revision

base-commit: dd057113ac7ba5bdd2aed3d9405305911152f911
-- 
2.43.0