linux-kernel - [PATCH v9 1/8] lib/cmdline.c: remove quotes symmetrically

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Message-Id: <151075900967.14434.2860376398321506569.stgit@hbathini.in.ibm.com>
Date:   Wed, 15 Nov 2017 20:46:56 +0530
From:   Hari Bathini <hbathini@...ux.vnet.ibm.com>
To:     linuxppc-dev <linuxppc-dev@...abs.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        lkml <linux-kernel@...r.kernel.org>
Cc:     Michael Ellerman <mpe@...erman.id.au>,
        Ankit Kumar <ankit@...ux.vnet.ibm.com>,
        Michal Suchánek <msuchanek@...e.de>,
        Mahesh J Salgaonkar <mahesh@...ux.vnet.ibm.com>
Subject: [PATCH v9 1/8] lib/cmdline.c: remove quotes symmetrically

From: Michal Suchanek <msuchanek@...e.de>

Remove quotes from argument value only if there is qoute on both sides.

Signed-off-by: Michal Suchanek <msuchanek@...e.de>
---
 lib/cmdline.c |   10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/lib/cmdline.c b/lib/cmdline.c
index 171c19b..6d398a8 100644
--- a/lib/cmdline.c
+++ b/lib/cmdline.c
@@ -227,14 +227,12 @@ char *next_arg(char *args, char **param, char **val)
 		*val = args + equals + 1;
 
 		/* Don't include quotes in value. */
-		if (**val == '"') {
-			(*val)++;
-			if (args[i-1] == '"')
-				args[i-1] = '\0';
+		if ((args[i-1] == '"') && ((quoted) || (**val == '"'))) {
+			args[i-1] = '\0';
+			if (!quoted)
+				(*val)++;
 		}
 	}
-	if (quoted && args[i-1] == '"')
-		args[i-1] = '\0';
 
 	if (args[i]) {
 		args[i] = '\0';