diff options
| author |   Randy Dunlap <rdunlap@infradead.org> | 2022-03-07 18:42:28 -0800 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-03-18 13:09:57 +0100 |
| commit | 53819a0d97aace1425bb042829e3446952a9e8a9 (patch) | |
| tree | 144e81b9bbc8a038efdb90c2a117685aff2987e8 /drivers/tty/hvc | |
| parent | serial: samsung: Add samsung_early_read to support early kgdboc (diff) | |
| download | linux-dev-53819a0d97aace1425bb042829e3446952a9e8a9.tar.xz linux-dev-53819a0d97aace1425bb042829e3446952a9e8a9.zip | |
tty: hvc: fix return value of __setup handler
__setup() handlers should return 1 to indicate that the boot option
has been handled or 0 to indicate that it was not handled.
Add a pr_warn() message if the option value is invalid and then
always return 1.
Link: lore.kernel.org/r/64644a2f-4a20-bab3-1e15-3b2cdd0defe3@omprussia.ru
Fixes: 86b40567b917 ("tty: replace strict_strtoul() with kstrtoul()")
Cc: Jingoo Han <jg1.han@samsung.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jirislaby@kernel.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Julian Wiedmann <jwi@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Reported-by: Igor Zhbanov <i.zhbanov@omprussia.ru>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20220308024228.20477-1-rdunlap@infradead.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/hvc')
| -rw-r--r-- | drivers/tty/hvc/hvc_iucv.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/tty/hvc/hvc_iucv.c b/drivers/tty/hvc/hvc_iucv.c index 82a76cac94de..32366caca662 100644 --- a/drivers/tty/hvc/hvc_iucv.c +++ b/drivers/tty/hvc/hvc_iucv.c @@ -1417,7 +1417,9 @@ out_error: */ static int __init hvc_iucv_config(char *val) { - return kstrtoul(val, 10, &hvc_iucv_devices); + if (kstrtoul(val, 10, &hvc_iucv_devices)) + pr_warn("hvc_iucv= invalid parameter value '%s'\n", val); + return 1; } |