diff mbox

brcmfmac: treat \0 as end of comment when parsing NVRAM

Message ID 1432123194-12584-1-git-send-email-zajec5@gmail.com (mailing list archive)
State Accepted
Delegated to: Kalle Valo
Headers show

Commit Message

Rafał Miłecki May 20, 2015, 11:59 a.m. UTC
This fixes brcmfmac dealing with NVRAM coming from platform e.g. from a
flash MTD partition. In such cases entries are separated by \0 instead
of \n which caused ignoring whole content after the first "comment".
While platform NVRAM doesn't usually contain comments, we switch to
COMMENT state after e.g. finding an unexpected char in key name.

Signed-off-by: Rafa? Mi?ecki <zajec5@gmail.com>
---
 drivers/net/wireless/brcm80211/brcmfmac/firmware.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

Comments

Kalle Valo May 28, 2015, 8:52 a.m. UTC | #1
Rafa? Mi?ecki <zajec5@gmail.com> writes:

> This fixes brcmfmac dealing with NVRAM coming from platform e.g. from a
> flash MTD partition. In such cases entries are separated by \0 instead
> of \n which caused ignoring whole content after the first "comment".
> While platform NVRAM doesn't usually contain comments, we switch to
> COMMENT state after e.g. finding an unexpected char in key name.
>
> Signed-off-by: Rafa? Mi?ecki <zajec5@gmail.com>

Thanks, applied manually.
diff mbox

Patch

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/firmware.c b/drivers/net/wireless/brcm80211/brcmfmac/firmware.c
index 0d02e31..45d7191 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/firmware.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/firmware.c
@@ -162,17 +162,20 @@  brcmf_nvram_handle_value(struct nvram_parser *nvp)
 static enum nvram_parser_state
 brcmf_nvram_handle_comment(struct nvram_parser *nvp)
 {
-	char *eol, *sol;
+	char *eoc, *sol;
 
 	sol = (char *)&nvp->fwnv->data[nvp->pos];
-	eol = strchr(sol, '\n');
-	if (eol == NULL)
-		return END;
+	eoc = strchr(sol, '\n');
+	if (!eoc) {
+		eoc = strchr(sol, '\0');
+		if (!eoc)
+			return END;
+	}
 
 	/* eat all moving to next line */
 	nvp->line++;
 	nvp->column = 1;
-	nvp->pos += (eol - sol) + 1;
+	nvp->pos += (eoc - sol) + 1;
 	return IDLE;
 }