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Date: Mon, 7 Mar 2022 10:19:04 +0100 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Randy Dunlap <rdunlap@...radead.org>, Igor Zhbanov <i.zhbanov@...russia.ru>, Giuseppe Cavallaro <peppe.cavallaro@...com>, Alexandre Torgue <alexandre.torgue@...s.st.com>, Jose Abreu <joabreu@...opsys.com>, Jakub Kicinski <kuba@...nel.org> Subject: [PATCH 5.10 061/105] net: stmmac: fix return value of __setup handler From: Randy Dunlap <rdunlap@...radead.org> commit e01b042e580f1fbf4fd8da467442451da00c7a90 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: 47dd7a540b8a ("net: add support for STMicroelectronics Ethernet controllers.") Fixes: f3240e2811f0 ("stmmac: remove warning when compile as built-in (V2)") Signed-off-by: Randy Dunlap <rdunlap@...radead.org> Reported-by: Igor Zhbanov <i.zhbanov@...russia.ru> Link: lore.kernel.org/r/64644a2f-4a20-bab3-1e15-3b2cdd0defe3@...russia.ru Cc: Giuseppe Cavallaro <peppe.cavallaro@...com> Cc: Alexandre Torgue <alexandre.torgue@...s.st.com> Cc: Jose Abreu <joabreu@...opsys.com> Link: https://lore.kernel.org/r/20220224033536.25056-1-rdunlap@infradead.org Signed-off-by: Jakub Kicinski <kuba@...nel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -5428,7 +5428,7 @@ static int __init stmmac_cmdline_opt(cha char *opt; if (!str || !*str) - return -EINVAL; + return 1; while ((opt = strsep(&str, ",")) != NULL) { if (!strncmp(opt, "debug:", 6)) { if (kstrtoint(opt + 6, 0, &debug)) @@ -5459,11 +5459,11 @@ static int __init stmmac_cmdline_opt(cha goto err; } } - return 0; + return 1; err: pr_err("%s: ERROR broken module parameter conversion", __func__); - return -EINVAL; + return 1; } __setup("stmmaceth=", stmmac_cmdline_opt);
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