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bgmac: allow bigger et_swtype nvram variable 

Without this patch it is impossible to read et_swtype, because the 1
byte space is needed for the terminating null byte. The max expected
value is 0xF, so now it should be possible to read decimal form ("15")
and hex form ("0xF").

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Hauke Mehrtens 2013-09-15 22:49:08 +02:00 committed by David S. Miller
parent 6a391e7bf2
commit 3647268ded
1 changed files with 2 additions and 2 deletions
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4
drivers/net/ethernet/broadcom/bgmac.c
View File

@ -909,9 +909,9 @@ static void bgmac_chip_reset(struct bgmac *bgmac)
u8 et_swtype = 0;
u8 sw_type = BGMAC_CHIPCTL_1_SW_TYPE_EPHY |
BGMAC_CHIPCTL_1_IF_TYPE_MII;
char buf[2];
char buf[4];
if (bcm47xx_nvram_getenv("et_swtype", buf, 1) > 0) {
if (bcm47xx_nvram_getenv("et_swtype", buf, sizeof(buf)) > 0) {
if (kstrtou8(buf, 0, &et_swtype))
bgmac_err(bgmac, "Failed to parse et_swtype (%s)\n",
buf);