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Commit 1bfbd283 authored by Simon Arlott's avatar Simon Arlott Committed by Greg Kroah-Hartman
Browse files

USB: cxacru: return an empty value for modulation if there is no connection 



When there is no connection, return an empty string
instead of "0" for the connection modulation.

Signed-off-by: default avatarSimon Arlott <simon@fire.lp0.eu>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 4e0fa90d

Documentation/networking/cxacru.txt

+1 −0
Original line number Diff line number Diff line
@@ -61,6 +61,7 @@ several sysfs attribute files for retrieving device statistics: 
* mac_address



* modulation

	"" (when not connected)

	"ANSI T1.413"

	"ITU-T G.992.1 (G.DMT)"

	"ITU-T G.992.2 (G.LITE)"

drivers/usb/atm/cxacru.c

+2 −2
Original line number Diff line number Diff line
@@ -267,12 +267,12 @@ static ssize_t cxacru_sysfs_showattr_LINE(u32 value, char *buf) 
static ssize_t cxacru_sysfs_showattr_MODU(u32 value, char *buf)

{

	static char *str[] = {

			NULL,

			"",

			"ANSI T1.413",

			"ITU-T G.992.1 (G.DMT)",

			"ITU-T G.992.2 (G.LITE)"

	};

	if (unlikely(value >= ARRAY_SIZE(str) || str[value] == NULL))

	if (unlikely(value >= ARRAY_SIZE(str)))

		return snprintf(buf, PAGE_SIZE, "%u\n", value);

	return snprintf(buf, PAGE_SIZE, "%s\n", str[value]);

}