[PATCH 4.19 34/51] net: sxgbe: fix return value of __setup handler

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From: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>

commit 50e06ddceeea263f57fe92baa677c638ecd65bb6 upstream.

__setup() handlers should return 1 on success, i.e., the parameter
has been handled. A return of 0 causes the "option=value" string to be
added to init's environment strings, polluting it.

Fixes: acc18c147b22 ("net: sxgbe: add EEE(Energy Efficient Ethernet) for Samsung sxgbe")
Fixes: 1edb9ca69e8a ("net: sxgbe: add basic framework for Samsung 10Gb ethernet driver")
Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Reported-by: Igor Zhbanov <i.zhbanov@xxxxxxxxxxxx>
Link: lore.kernel.org/r/64644a2f-4a20-bab3-1e15-3b2cdd0defe3@xxxxxxxxxxxx
Cc: Siva Reddy <siva.kallam@xxxxxxxxxxx>
Cc: Girish K S <ks.giri@xxxxxxxxxxx>
Cc: Byungho An <bh74.an@xxxxxxxxxxx>
Link: https://lore.kernel.org/r/20220224033528.24640-1-rdunlap@xxxxxxxxxxxxx
Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

--- a/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c
+++ b/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c
@@ -2280,18 +2280,18 @@ static int __init sxgbe_cmdline_opt(char
 	char *opt;
 
 	if (!str || !*str)
-		return -EINVAL;
+		return 1;
 	while ((opt = strsep(&str, ",")) != NULL) {
 		if (!strncmp(opt, "eee_timer:", 10)) {
 			if (kstrtoint(opt + 10, 0, &eee_timer))
 				goto err;
 		}
 	}
-	return 0;
+	return 1;
 
 err:
 	pr_err("%s: ERROR broken module parameter conversion\n", __func__);
-	return -EINVAL;
+	return 1;
 }
 
 __setup("sxgbeeth=", sxgbe_cmdline_opt);





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