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brcm47xx: bgmac: allow bigger et_swtype nvram variable

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Without this patch it is impossible to read et_swtype, because the 1
byte space is needed for the terminating null byte. Now it should be
possible to read decimal and hex vars of max 8 bit.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

SVN-Revision: 37999
This commit is contained in:
Hauke Mehrtens 2013-09-15 15:50:41 +00:00
parent 2693eab7fd
commit 57c6730ed6
1 changed files with 14 additions and 0 deletions
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14
target/linux/brcm47xx/patches-3.10/711-bgmac_fix_parsing_of_et_swtype.patch Normal file
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@ -0,0 +1,14 @@
--- a/drivers/net/ethernet/broadcom/bgmac.c
+++ b/drivers/net/ethernet/broadcom/bgmac.c
@@ -909,9 +909,9 @@ static void bgmac_chip_reset(struct bgma
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);