From: Randy Dunlap rdunlap@infradead.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@infradead.org Reported-by: Igor Zhbanov i.zhbanov@omprussia.ru Link: lore.kernel.org/r/64644a2f-4a20-bab3-1e15-3b2cdd0defe3@omprussia.ru Cc: Giuseppe Cavallaro peppe.cavallaro@st.com Cc: Alexandre Torgue alexandre.torgue@foss.st.com Cc: Jose Abreu joabreu@synopsys.com Link: https://lore.kernel.org/r/20220224033536.25056-1-rdunlap@infradead.org Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.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 @@ -4890,7 +4890,7 @@ 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)) @@ -4921,11 +4921,11 @@ 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);